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Paper

Evaluating the Impacts of Variable Message Signs on Airport Curbside Performance Using Microsimulation

 
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Publication: Transportation Research Record: Journal of the Transportation Research Board
Publication Date: 2025
Summary:

Inefficient curb space allocation increases congestion and emissions at airports. Variable message signs (VMS) can alleviate this issue, guiding vehicles from congested to underutilized curbs. However, VMS effectiveness hinges on the right activation and deactivation timing. Using a microsimulation model of the Seattle-Tacoma International Airport, we analyzed the impacts of implementing VMS and determined the best time to turn the sign on and off. We simulated sixteen VMS management scenarios and compared the results against those of a baseline where there was no VMS. We found that strategic and timely management of the VMS is crucial to achieving improvements in congestion and curb performance. Specifically, activating VMS before congestion started on the sending link and deactivating it before congestion began on the receiving link substantially improved curb productivity and accessibility, vehicle delay, and CO2 emissions. On the other hand, if not managed correctly, VMS may lead to little to no improvements, or even negative impacts on traffic conditions and curb performance. For instance, late activation or deactivation can worsen curb accessibility and vehicle delay. Our framework provides valuable insights into how airports could successfully manage VMS technologies.

Authors: Thomas Maxner, Jorge M. Diaz-Gutierrez, Andisheh Ranjbari, Nicola Longo, Nawaf Nazir
Recommended Citation:
Diaz-Gutierrez, J.M. et al. (2025) Evaluating the Impacts of Variable Message Signs on Airport Curbside Performance Using Microsimulation. Transportation Research Record: Journal of the Transportation Research Board. https://doi.org/10.1177/03611981251387133
Article

The state of modelling for evaluating health equity impacts of freight emissions

 
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Publication: Transport Reviews
Pages: 1-25
Publication Date: 2025
Summary:

Evaluating health equity impacts of freight emissions is crucial for developing a sustainable and just freight system. It is a complex process that requires interdisciplinary knowledge, including transportation, environment, and public health. Full-chain simulation is an important approach for forecasting freight planning outcomes. However, a systematic framework that integrates available models in full-chain and is specifically designed for the freight sector has not been developed. We review 36 empirical studies covering this interdisciplinary topic, and summarise the commonly used models. We find that EMission FACtor (EMFAC) and Motor Vehicle Emission Simulator (MOVES) models are commonly used to estimate freight vehicle emissions, with their outputs serving as inputs for air quality models, such as Community Multiscale Air Quality Model (CMAQ) or Intervention model for air pollution (InMAP). To estimate the health effects, concentration-response (C-R) functions, combined with static or dynamic demographic and socioeconomic data, are used to quantify the relationship between changes in pollutant concentrations and health outcomes. Then, disparity analysis relies on the assumption of age-specific C-R functions and examines statistical differences between demographic groups – including racial/ethnic groups, income levels, age groups, and other vulnerable communities. This study comprehensively outlines this state-of-the-art, integrated framework identified through the synthesis of this interdisciplinary literature. This framework can support future researchers in this field and policymakers.

Recommended Citation:
Zhengtao Qin, Anne Goodchild, Travis Fried, Sarah Dennis-Bauer & Quan Yuan (09 Oct 2025): The state of modelling for evaluating health equity impacts of freight emissions, Transport Reviews, DOI: 10.1080/01441647.2025.2566679

Miami-Dade County SMART Curbs Program

Miami-Dade County Department of Transportation and Public Works (DTPW) received funding from the U.S. Department of Transportation’s SMART (Strengthening Mobility and Revolutionizing Transportation) grant program to improve curbside management, bike lane safety, and zero-emission urban freight through technology, sustainability, and community input.

As research partner, the Urban Freight Lab’s role includes shaping the pilot design, ensuring grant compliance, advising on technology integration, informing policy development, and leading shared learning across cities.

Selected from 392 applications nationwide, this project is part of a broader multi-city effort to build safer, more equitable and more sustainable freight systems by leveraging innovative technology and data.

Background

The Miami-Dade County SMART Curbs Program aims to transform streets across Miami-Dade County, Florida, with safer, cleaner, and more connected delivery solutions. Led by Miami-Dade DTPW and funded through the U.S. Department of Transportation’s SMART (Strengthening Mobility and Revolutionizing Transportation) grant program, this project combines advanced technologies, sustainable logistics, and public engagement to reduce emissions, improve bike lane safety, and support zero-emissions deliveries.

As part of a national multi-city collaboration, the program addresses complex challenges such as e-delivery and micro-freight monitoring, secure curb access and parking, and shared data tools to support better freight planning, policy development, and the modernization of last-mile delivery infrastructure.

Goals

The SMART Curbs Program goals are:

  • Create Safer Streets: Minimize roadway risks and reduce congestion with better curbside management and the adoption of zero-emission vehicles
  • Protect the Climate: Support Miami-Dade County’s climate goals by reducing emissions, promoting clean air, and encouraging sustainable delivery practices
  • Boost the Local Economy: Increase delivery efficiency, create jobs in last-mile logistics, and support the management of MicroFreight hubs
  • Engage the Community: Ensure input from all residents to guide planning and implementation.

The program includes SMART Loading Zones throughout Downtown Miami and Brickell. These zones are dedicated spaces designed to:

  • Streamline freight deliveries
  • Reduce curbside congestion
  • Improve urban safety
  • Advance zero-emission transportation goals

By addressing high-traffic areas with innovative solutions, SMART Loading Zones will create a more organized and efficient curbside experience for residents, businesses, and delivery drivers.

Urban Freight Lab Scope of Work

Task 1 – Project Management and QA/QC

Task 2 – Grant compliance and project management capacity support

The Subcontractor will work with Cityfi to aid the Client in certain elements of grant reporting and compliance. These include support of DTPW in development of the required Evaluation and Measurement Plan, compilation of the findings of said plan, problem statement definition and research framing.

Task 3 — Best Practices and State of the Industry Research

The Subcontractor will provide technical advice and best practice research, in particular, on the urban freight industry and operations. Research will include collaboration with DTPW project manager to assess pilot design in line with freight industry and local community needs.

Task 4 — Conceptual Design Support

The Subcontractor will support Cityfi, the Client, and public engagement and technology partners to allow DTPW to craft a conceptual design for demonstration deployment. Design will include multiple demonstration sites, assessment of anticipated users, integration of multiple technology partners, and public interface of technologies.

Task 5 — Technology Partner Integration Support

Multiple technologies and public agencies are involved in the micro-freight and smart curb zone demonstration. These entities must work together for a successful integrated demonstration. This will likely include new product development to enable the necessary integration and deliver outcomes desired by the County.

Task 6 — Policy and Regulatory Support

As with any new technology, form factor or service model, there is a high likelihood that new or revised policies, procedures or even regulations will be necessary to facilitate their demonstration and ultimate deployment. The Subcontractor will support Cityfi and DTPW with necessary policy assessments.

Task 7 — Collaborative Learnings and Exchange

DTPW was selected for a grant award as a member of a multi-city collaborative. It is the expectation of USDOT that DTPW will engage in shared learnings and exchange with other members of the collaborative to accelerate innovation and improvement across the nine participating cities.

Task 8 — Phase I Summary and Phase II Grant Support

At the conclusion of Phase I, DTPW must submit an array of materials to USDOT to compete for Phase II funding for expansion and scaling. The Subcontractor will support Cityfi in preparing an evaluation and summary report of the Phase I demonstration documenting indicators, accomplishments and outcomes as necessary to inform Phase II application.

Article

The State of Sustainable Urban Last-Mile Freight Planning in the United States

 
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Publication: Journal of the American Planning Association
Volume: 2024
Pages: 1-14
Publication Date: 2024
Summary:

Problem, research strategy, and findings
The transportation sector is the largest contributor of greenhouse gas emissions in the United States. To articulate how cities may combat rising emissions, municipalities throughout the country have produced climate action and sustainability plans that outline strategies to reduce their carbon footprints from transportation. At the same time, last-mile delivery—also known as urban freight—is becoming an increasingly important component of urban transport emissions due to the rise of e-commerce. However, few cities are overtly pursuing policies to reduce emissions from this subsector. In this research we used content analysis to determine the extent to which major cities (based on population and growth) were considering or actively developing sustainable urban freight practices. We developed a simple contextual scale to compare the comprehensiveness of planning trends between cities. This content analysis also identified the strategies those cities are considering. Our findings show that fewer than half (45%) of the studied cities have considered last-mile freight in sustainability planning at all. Of those, only 17 (29%) have articulated an intent to dedicate resources toward achieving that goal.

Takeaway for practice
We found that urban freight planning is still in its infancy in terms of actions taken by municipal agencies. Though some cities have comparatively comprehensive plans dedicated to the industry, most are just now scratching the surface. Those cities lacking dedicated last-mile freight plans can learn from those other cities initiating pilots and collecting data from the industry. We point out also, though, that urban freight planning requires an understanding of the stakeholders, namely, delivery companies, and the first step for many cities is to initiate communication and collaboration with the private sector to better understand the environmental impact of urban freight in their city.

Last-mile goods delivery, and the externalities associated with it, is on the rise in urban areas (Buldeo Rai et al., Citation2017; World Economic Forum, Citation2020). The increase in urban deliveries can be attributed to changes in consumer demand, new or better services offered by companies, and the increase in the urban population. E-commerce has changed the way customers interact with companies by offering platforms outside traditional shopping channels (Wagner et al., Citation2020). Services including same-day delivery, prepared food delivery applications, and grocery delivery services have resulted in the growth of e-commerce-related urban freight trips (Rotem-Mindali & Weltevreden, Citation2013) as well as an increase in the number of vehicles competing for limited space on city infrastructure (Chen et al., Citation2016; Viu-Roig & Alvarez-Palau, Citation2020). Cities, then, have been increasingly affected by the local air and noise pollution, greenhouse gas (GHG) emissions, congestion, and road safety hazards associated with last-mile delivery vehicle activities. Air and noise pollution have immediate, negative impacts on the health of urban populations, and GHG emissions are contributing to long-term climate change (U.S. Environmental Protection Agency, Citation2016). Dense, highly populated, and rapidly growing cities can expect to see an increase in goods-related vehicle traffic of up to 30% in the coming decade (World Economic Forum, Citation2020).

Our research is part of a larger project aimed at identifying ways to reduce emissions from last-mile goods movement and the challenges that exist to implementation of those strategies. Throughout this article we use urban freight and last-mile delivery or goods movement interchangeably. This research is centered on the planning aspect of urban freight. Policy problems, in this case emissions from freight, are often referenced in long-range planning documents and solutions are offered. Planning documents can be a useful tool to identify the scale and scope of resources being allocated to a problem. Our research is the first to ask: What is the state of sustainable urban last-mile freight planning in U.S. cities?

In particular, we address the following questions:

  • How do U.S. cities define urban freight?
  • What strategies are U.S. cities considering to reduce last-mile delivery emissions?
  • How often are freight strategies considered in urban planning?
  • What is the context in which sustainable last-mile strategies are referenced?

We answered these research questions by performing a scan of the relevant policy documents published by major U.S. cities. We first identified which sustainable last-mile strategies cities were seeking to implement. Then we evaluated the degree to which those strategies were incorporated into city planning documents: Were there tests or pilots ongoing, or was the reference intended to guide policy decisions in the future? Our analysis here provides a general overview of how widespread sustainable urban freight planning is in U.S. cities.

This article is organized as follows: The next section describes the methods used to select U.S. cities to evaluate, extract prescient references from those cities’ planning documents, and the evaluation tool developed for our research. Next, we describe findings from the review of the city plans, organized by research subquestions listed above. We show that the definition of urban freight has been inconsistent and that few cities have considered multiple strategies, much less dedicated resources to testing those strategies. Findings are followed by a discussion of the key findings and conclusions. We found that there were model cities pursuing multiple sustainable freight avenues from which other cities less familiar with the industry could gain valuable knowledge.

Recommended Citation:
Maxner, T., Dalla Chiara, G., & Goodchild, A. (2024). The State of Sustainable Urban Last-Mile Freight Planning in the United States. Journal of the American Planning Association, 1–14. https://doi.org/10.1080/01944363.2024.2324096
Blog

Freight’s Role in Delivering Equitable Cities (Part II)

Publication: Goods Movement 2030: An Urban Freight Blog
Publication Date: 2022
Summary:

Moving freight is vital to our ability to live in cities and access goods — but who bears the costs of moving goods, and who benefits from the access that goods movement provides? These costs and benefits have not been borne equally.

The last blog post revealed how urban freight is largely missing in discussions around transportation equity and accessibility. Freight delivers immense benefits to cities and residents. These benefits go beyond economic development, which is often how policymakers see freight. Not to say these economic benefits are small potatoes. Roughly 40 percent of Washington jobs connect to freight, generating $92 billion in economic impact annually.

So while the benefits of the urban freight system are foundational to cities, they go largely overlooked. The value of a freight system comes when you enjoy a good meal, receive essential medicines, or get lost in a favorite book. Put simply: Moving freight is vital to our ability to live in cities and access goods.

But who bears the costs of moving goods, and who benefits from the access that goods movement provides? These costs and benefits have not been borne equally.

Authors: Travis Fried
Recommended Citation:
"Freight’s Role in Delivering Equitable Cities (Part II)" Goods Movement 2030 (blog). Urban Freight Lab, December 13, 2022. https://www.goodsmovement2030.com/post/delivering-equitable-cities-p2
Article

More Online Shopping Means More Delivery Trucks. Are Cities Ready?

 
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Publication: The Conversation
Publication Date: 2016
Summary:

Two converging trends — the rise of e-commerce and urban population growth — are creating big challenges for cities. Online shoppers are learning to expect the urban freight delivery system to bring them whatever they want, wherever they want it, within one to two hours. That’s especially true during the holidays, as shipping companies hustle to deliver gift orders on time.

City managers and policymakers were already grappling with high demand and competing uses for scarce road, curb, and sidewalk space. If cities do not act quickly to revamp the way they manage increasing numbers of commercial vehicles unloading goods in streets and alleys and into buildings, they will drown in a sea of double-parked trucks.

The University of Washington has formed a new Urban Freight Lab to solve delivery system problems that cities and the business sector cannot handle on their own. Funders of this long-term strategic research partnership include the City of Seattle Department of Transportation (SDOT) and five founding corporate members: Costco, FedEx, Nordstrom, UPS, and the U.S. Postal Service.

The core problem facing cities is that they are trying to manage their part of a sophisticated data-powered 21st-century delivery system with tools designed for the 1800s — and they are often trying to do it alone. Consumers can order groceries, clothes, and electronics with a click, but most cities only have a stripe of colored paint to manage truck parking at the curb. The Urban Freight Lab brings building managers, retailers, logistics and tech firms, and city government together to do applied research and develop advanced solutions.

Moving more goods, more quickly

We have reached the point where millions of people who live and work in cities purchase more than half of their goods online. This trend is putting tremendous pressure on local governments to rethink how they manage street curb parking and alley operations for trucks and other delivery vehicles. It also forces building operators to plan for the influx of online goods. A few years ago, building concierges may have received a few flower bouquets. Now many are sorting and storing groceries and other goods for hundreds of residents every week.

In the first quarter of 2016, almost 8 percent of total U.S. retail sales took place online. Surging growth in U.S. online sales has averaged more than 15 percent year-over-year since 2010. Black Friday web sales soared by 22 percent from 2015 to 2016.

Online shoppers’ expectations for service are also rising. Two out of three shoppers expect to be able to place an order as late as 5:00 p.m. for next-day delivery. Three out of five believe orders placed by noon should be delivered the same day, and one out of four believe orders placed by 4:00 p.m. or later should still be delivered on the same day.

City living and shopping is still all about location, location, location. People are attracted to urban neighborhoods because they prefer to walk more and drive less. Respondents in the 2015 National Multifamily Housing Council-Kingsley Apartment Resident Preferences Survey preferred walking to grocery stores and restaurants rather than driving by seven points. But this lifestyle requires merchants to deliver goods to customers’ homes, office buildings or stores close to where they live.

Smarter delivery systems

SDOT recently published Seattle’s first draft Freight Master Plan, which includes high-level strategies to improve the urban goods delivery system. But before city managers act, they need evidence to prove which concepts will deliver results.

To lay the groundwork for our research, an SCTL team led by Dr. Ed McCormack and graduate students Jose Machado Leon and Gabriela Giron surveyed 523 blocks of Seattle’s downtown (including Belltown, the commercial core, Pioneer Square and International District), South Lake Union and Uptown urban centers in the fall of 2016. They compiled GIS coordinates and infrastructure characteristics for all observable freight loading bays within buildings. Our next step is to combine this information with existing GIS layers of the city’s curbside commercial vehicle load zones and alleys to produce a complete map of Seattle’s urban delivery infrastructure.

In our first research project, the Urban Freight Lab is using data-based process improvement tools to purposefully manage both public and private operations of the Final-50-Feet space. The final 50 feet of the urban delivery system begins when a truck stops at a city-owned curb, commercial vehicle load zone or alley. It extends along sidewalks and through privately owned building freight bays, and may end in common areas within a building, such as the lobby.

One key issue is failed deliveries: Some city residents don’t receive their parcels due to theft or because they weren’t home to accept them. Could there be secure, common drop-off points for multiple carriers to use, attached to bus stops or on the sidewalk?

The most pressing issue is the lack of space for trucks to park and deliver goods downtown. It may be possible to use technology to get more use out of existing commercial vehicle load zones. For example, trucks might be able to use spaces now reserved exclusively for other uses during off-peak hours or seasons.

To analyze the fundamental problems in the urban logistics system, our research team will create process flow maps of each step in the goods delivery process for five buildings in Seattle. We will collect data and build a model to analyze “what if” scenarios for one location. Then we will pilot test several promising low-cost, high-value actions on Seattle streets in the fall of 2017. The pilots may involve actively managing city load zones and alleys to maximize truck use, or changing the way people use freight elevators.

By using information technologies and creative planning, we can make receiving online goods as efficient as ordering them — without clogging our streets or losing our packages.

Recommended Citation:
Goodchild, A., & Ivanov, B. (2016, December 20). More online shopping means more delivery trucks. Are cities ready? The Conversation. https://theconversation.com/more-online-shopping-means-more-delivery-trucks-are-cities-ready-67686.
Article

How Many Amazon Packages Get Delivered Each Year?

Publication: The Conversation
Publication Date: 2022
Summary:

How many Amazon packages get delivered each year? – Aya K., age 9, Illinois

It’s incredibly convenient to buy something online, right from your computer or phone. Whether it’s a high-end telescope or a resupply of toothpaste, the goods appear right at your doorstep. This kind of shopping is called “e-commerce” and it’s becoming more popular each year. In the U.S., it has grown from a mere 7% of retail purchases in 2012 to 19.6% of retail and $791.7 billion in sales in 2020.

Amazon’s growing reach
For Amazon, the biggest player in e-commerce, this means delivering lots of packages.

In 2021 Amazon shipped an estimated 7.7 billion packages globally, based on its nearly $470 billion in sales.

In 2021 Amazon shipped an estimated 7.7 billion packages globally.

If each of these packages were a 1-foot square box and they were stacked on top of one another, the pile would be six times higher than the distance from the Earth to the Moon. Laid end to end, they would wrap around the Earth 62 times.

Back in the early 2010s, most things bought from Amazon.com were shipped using a third-party carrier like FedEx or UPS. In 2014, however, Amazon began delivering packages itself with a service called “Fulfilled by Amazon.” That’s when those signature blue delivery vans started appearing on local streets.

Since then, Amazon’s logistics arm has grown from relying entirely on other carriers to shipping 22% of all packages in the U.S. in 2021. This is greater than FedEx’s 19% market share and within striking distance of UPS’s 24%. Amazon’s multichannel fulfillment service allows other websites to use its warehousing and shipping services. So your order from Etsy or eBay could also be packed and shipped by Amazon.

The supply chain
To handle that many packages, shipping companies need an extensive network of manufacturers, vehicles and warehouses that can coordinate together. This is called the supply chain. If you’ve ever used a tracking number to follow a package, you’ve seen it in action.

People who make decisions about where to send vehicles and how to route packages are constantly trying to keep costs down while still getting packages to customers on time. The supply chain can do this very effectively, but it also has downsides.

More delivery vehicles on the road produce more greenhouse gas emissions that contribute to climate change, along with pollutants like nitrogen oxides and particulate matter that are hazardous to breathe. Traffic congestion is also a major concern in cities as delivery drivers try to find parking on busy streets.

Urban freight solutions
Are there ways to balance the increasing number of deliveries while making freight safe, sustainable and fast? At the University of Washington’s Urban Freight Lab, we work with companies like Amazon and UPS and others in the shipping, transportation and real estate sectors to answer questions like this. Here are some solutions for what we and our colleagues call the “last mile” – the last leg of a package’s long journey to your doorstep.

  • Electrification: Transitioning from gasoline and diesel vehicles to fleets of electric or other zero-emission vehicles reduces pollution from delivery trucks. Tax credits and local policies, such as creating so-called green loading zones and zero-emission zones for clean vehicles, create incentives for companies to make the switch.
  • Common carrier lockers: Buildings can install lockers at central locations, such as busy transit stops, so that drivers can drop off packages without going all the way to your doorstep. When you’re ready to pick up your items, you just stop by at a time that’s convenient for you. This reduces both delivery truck mileage and the risk of packages being stolen off of porches.
  • Cargo bicycles: Companies can take the delivery truck out of the equation and use electric cargo bicycles to drop off smaller packages. In addition to being zero-emission, cargo bicycles are relatively inexpensive and easy to park, and they provide a healthier alternative for delivery workers.

To learn more about supply chains and delivery logistics, check with your town or city’s transportation department to see if they are testing or already have goods delivery programs or policies, like those in New York and Seattle. And the next time you order something for delivery, consider your options for receiving it, such as walking or biking to a package locker or pickup point, or consolidating your items into a single delivery.

Package delivery can be both convenient and sustainable if companies keep evolving their supply chains, and everyone thinks about how they want delivery to work in their neighborhoods.

Recommended Citation:
Goodchild, A. How many Amazon packages get delivered each year? The Conversation. https://theconversation.com/how-many-amazon-packages-get-delivered-each-year-187587

Biking for Goods: A Case Study on the Seattle Pedaling Relief Project

1. Introduction
One of the disruptions brought by the COVID-19 pandemic was the reduction of in-store shopping, and the consequent increase in online shopping and home deliveries. However, not everyone had equal access to online shopping and home-delivery services. Customers relying on food banks were forced to shop in-store even during the pandemic. In 2020, the Cascade Bicycle Club started the Pedaling Relief Project (PRP) – a not-for-profit home delivery service run by volunteers using bikes to pick up food at food banks and deliver to food bank customers, among other services.

The Urban Freight Lab collaborates with the Cascade Bicycle Club (CBC) to study and improve PRP operations. For this work, students in Prof. Anne Goodchild’s Transportation Engineering course on Transportation Logistics (CET 587) are undertaking a case study: to analyze the transport and logistics system of the Pedaling Relief Project and provide recommendations for how to improve operations.

2. Background
2.1. Food rescue at a glance
An estimated 94,500 tons of food from Seattle business establishments end up in compost and landfills each year, while many members of our community remain food insecure. The process of food rescuing consists of the gleaning of edible food from business establishments – called donor businesses such as grocery stores, restaurants, and commissary kitchens – that otherwise would enter the waste stream and be re-distributed to local food programs. Hunger relief agencies, also referred to as food banks, are non-profit organizations that collect rescued food, either directly from businesses or through food rescue distributors (such as Food Lifeline or Northeast Harvest) and re-distribute it to the community through meal programs, walk-ins, and pop-up food pantries, student backpack programs, among others.

Read more about the Seattle food rescue system in SCTL’s report (2020) on “Improving Food Rescue in Seattle: What Can Be Learned from a Supply Chain View?

2.2. Pedaling Relief Project
In 2020 the Cascade Bicycle Club started the Pedaling Relief Project (PRP), a volunteer-based program that collaborates with local food banks to offer three main types of services — (1) grocery delivery, (2) food rescue, (3) little free pantry restocking — coordinating a network of volunteers on bikes.

  1. Grocery delivery (GD) service consists of picking up grocery bags from food banks and performing delivery routes, distributing food to food bank customers that asked for home delivery services.
  2. Food rescue (FR) services support the existing distributors by picking up food at business establishments and carrying rescued food to local food banks.
  3. Little free pantries restocking (LFPR) services consist of picking up food at local food banks and carrying it to neighborhood micro pantries –containers placed on local streets and open to everyone to store food from donors to whoever needs it. Learn more about the Little free pantries project on thelittlefreepantries.org.

Volunteers use their own bikes, with some cargo carry capacity, or can request a bike trailer or cargo bike from the Cascade Bicycle Club.

2.3. Cargo Bikes
Cargo bikes are two/three/four-wheel bikes with some cargo-carrying capacity. They are increasingly used as an alternative mode to trucks and vans to transport goods in urban areas. Cargo bikes are often supported by an electric motor that assists the driver when pedaling. Compared to internal combustion engine vehicles, cargo bikes do not produce tailpipe emissions and they consume less energy than electric vans (Verlinghieri et al., 2021). They also offer several operational advantages: they are more agile in navigating urban road traffic, they can use alternative road infrastructure such as bike lanes and sidewalks to drive and park, they can park closer to their delivery destination, reducing walking distances and parking dwell times (Dalla Chiara et al., 2020).

3. Project instructions

The CBC provided access to anonymous data on the PRP operations for the exclusive use of the 2022 CET 587 course student cohort final projects. Students are asked to individually perform empirical research using the provided data and/or self-collected data on the PRP operations with the following objectives:

  • Empirically analyze and describe PRP operations.
  • Provide recommendations on what actions can be taken to improve PRP operations.

Projects will meet the following two requirements:

  • Use the provided data and/or self-collected and/or publicly sourced data to perform empirical analysis
  • Provide justified and concrete recommendations on how to improve the PRP.
  • Complete deliverables 1 and 2 (see below), which consist of 2 presentations, a project proposal, and a final project report.

Project progress timeline and deliverables:

Weeks Progress & Deliverables
1-2 Become familiar with R language programming; PRP background and data
3 CBC gives a guest lecture about PRP
4-5 Project proposal; 2-minute lightning talk about the project proposal
Deliverable 1: 1-page project proposal
6-10 Implement proposed methodology and perform research
11 Each student will give a 15-minute presentation of the main results of the project
Deliverable 2: Final report
The following are potential project directions:
  • Analyze current routes performed by volunteers. How can they be improved? Get the work done more quickly, or with fewer bikes?
  • Analyze data from little free pantries restocking. Collect additional data on the use of Little Free Pantries by manual observations or by installing sensors in a few of them. Can we model demand and supply for food donations?
  • Collect and analyze GPS data by signing up and performing some of the PRP routes yourself. What type of infrastructure do cargo bikes need and how does street and curb use behavior differ between cargo bikes and vans? What can the city do to better support this type of activity?
  • Analyze volunteers’ behaviors data. Is it possible to model the supply of volunteers? Can you simulate different scenarios of volunteer supply?
  • Develop your own direction with approval.

Students will be provided with a base dataset on PRP operations. Students are encouraged to use other datasets self-collected or from public data sources (e.g. check out the SDOT Open Data Portal), to share ideas in class and among each other, to use as much as possible class time, guest lectures and office hours to ask questions and share ideas.

1: 1-page project proposal and 2-minute lightning talk describing motivation, project objective(s) and research question(s), proposed methodology (data to use/collect, methods to implement), and expected results.

2: Final report and 10-minute presentation describing data used, including sample size and sample statistics, how data collection was performed, empirical analysis performed using data and results from the analysis, and conclusions, key findings, and key recommendations.

Roadblocks to Sustainable Urban Freight

While freight transportation is a necessary activity to sustain cities’ social and economic life, enabling the movement and deployment of goods and services in and between urbanized areas, it also accounts for a significant portion of greenhouse gas (GHG) emissions, and therefore it is a major contributor to climate change. Guaranteeing an efficient and sustainable urban freight transport ecosystem is necessary for cities to survive and tackle the climate emergency.
Several stakeholders in the private and public sectors are currently taking action and drafting roadmaps to achieve such goals. However, as the urban freight ecosystem is a complex network of stakeholders, achieving such sustainability goals requires collaboration and coordination between multiple agents.
The project will collect and synthesize expert views from both the private and public sectors on what is needed to sustainably deliver the last mile and aims at identifying the roadblocks towards this goal. All types of goods and services will be considered, with the end goal of raising the entire industry’s understanding of the barriers to achieving sustainable urban freight.

Approach

Task 1: Research Scan (September-November 2020) Subtasks:

  1. identify an accepted and shared definition of sustainable urban freight;
  2. identify and classify the main agents of the urban freight system from both the private and public sectors and their main role in the last-mile ecosystem;
  3. identify and classify the main accepted strategies currently adopted towards sustainability.
The research team will also define the boundaries of the study, including the geographical region of concentration.

Task 2: Private sector expert interviews (December 2020-April 2021)

The main private sector agents identified in Task 1 will include vehicle manufacturers, retailers, carriers and more. The research team will identify and reach out to representatives of at least 15 companies. Participants will be interviewed using an open question format and will have an optional follow-up online survey. The objectives of the interviews and surveys are:
  1. listing the current strategies adopted to reach sustainable urban freight;
  2. understanding what the impacts are of other private and public sectors agents’ decisions on their sustainability strategies;
  3. identifying agents’ needs and obstacles to achieve their stated sustainable goals.

Task 3: Public sector expert interviews (December 2020-April 2021)

The research team will identify different urban typologies, classifying cities into homogeneous groups according to economic, demographic, urban form, mobility and sustainability indicators. The typologies will be used to sample cities from each identified urban typology.
The team will then reach out to representatives from the public sector agents from the sampled cities, including regulators, planners and public utility representatives, and perform a combination of online survey and online/phone interviews. At least 15 representatives from public sector agents will be contacted. The objectives of the interviews are:
  1. listing the current policies adopted by cities towards sustainable urban freight, including infrastructure investments and transport demand management;
  2. understanding what the obstacles are to achieve sustainability goals.

Task 4: Synthesizing research and identifying roadblocks (May-June 2021)

Synthesizing the work of the previous 3 tasks, and applying the research team’s own expertise, this task will identify the key obstacles to sustainable urban freight. Through a review of existing writings, discussions with experts, and their own domain expertise, the research team will identify the obstacles in the areas of transportation technology, infrastructure, and policy. This review will consider the obstacles in public sector, barriers to private business decision making, and where the two sectors need to take a collaborative approach. The results obtained in the study will be made available publicly as a white paper or submitted for scientific journal publication.

UPS E-Bike Delivery Pilot Test in Seattle: Analysis of Public Benefits and Costs (Task Order 6)

The City of Seattle granted a permit to United Parcel Service, Inc. (UPS) in fall 2018 to pilot test a new e-bike parcel delivery system in the Pioneer Square/Belltown area for one year. The Seattle Department of Transportation (SDOT) commissioned the Urban Freight Lab (UFL) to quantify and document the public impacts of this multimodal delivery system change in the final 50 feet of supply chains, to provide data and evidence for development of future urban freight policies.

The UFL will conduct analyses into the following research questions:

  1. What are the total changes in VMT and emissions (PM and GHG) to all three affected cargo van routes due to the e-bike pilot test in the Pike Place Market and neighboring areas?
  2. What is the change in the delivery van’s dwell time, e.g. the amount of time the van is parked, before and after introducing the e-bike?
  3. How does the e-bike system affect UPS’ failed first delivery (FFD) attempt rate along the route?
  4. If UPS begins to stage drop boxes along the route for the e-bike (instead of having to replenish from the parked trailer) what are the impacts to total VMT and emissions?
  5. How do e-bike delivery operations impact pedestrian, other bike, and motor traffic?