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Paper

Defining Urban Freight Microhubs: A Case Study Analysis

 
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Publication: Sustainability
Volume: 14 (1), 532
Publication Date: 2021
Summary:

Urban freight distribution has confronted several challenges, including negative environmental, social, and economic impacts. Many city logistics initiatives that use the concept of Urban Consolidation Centers (UCCs) have failed.

The failure of many UCCs does not mean that the idea of additional terminals or microhubs should be rejected. There is limited knowledge about the advantages and disadvantages of using microhubs, requiring further exploration of this concept.

To expand this knowledge, this research combines 17 empirical cases from Europe and North America to develop a framework for classifying different microhubs typologies. This research presents an integrated view of the cases and develops a common language for understanding microhub typologies and definitions. The research proposes microhubs as an important opportunity to improve urban freight sustainability and efficiency and one possible step to manage the challenge of multi-sector collaboration.

Authors: Şeyma GüneşTravis FriedDr. Anne Goodchild, Konstantina Katsela (University of Gothenburg), Michael Browne (University of Gothenburg)
Recommended Citation:
Katsela, Konstantina, Şeyma Güneş, Travis Fried, Anne Goodchild, and Michael Browne. 2022. "Defining Urban Freight Microhubs: A Case Study Analysis" Sustainability 14, no. 1: 532. https://doi.org/10.3390/su14010532
Report

The Final 50 Feet of the Urban Goods Delivery System: Completing Seattle’s Greater Downtown Inventory of Private Loading & Unloading Infrastructure (Phase 2)

 
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Publication Date: 2020
Summary:

This report describes the Urban Freight Lab (UFL) work to map the locations of all private loading docks, loading bays, and loading areas for commercial vehicles in Seattle’s First Hill and Capitol Hill neighborhoods and document their key design and capacity features, as part of our Final 50 Feet Research Program.

Taken together with the UFL’s earlier private freight infrastructure inventory in Downtown Seattle, Uptown, and South Lake Union, this report finalizes the creation of a comprehensive Greater Downtown inventory of private loading/unloading infrastructure. The Seattle Department of Transportation (SDOT) commissioned this work as part of its broader effort with UFL to GIS map the entire Greater Downtown commercial load/unload network, which includes alleys, curbs and private infrastructure.

The research team could find no published information on any major U.S. or European city that maintains a database with the location and features of private loading/unloading infrastructure (meaning, out of the public right of way): Seattle is the first city to do so.

By supporting and investing in this work, SDOT demonstrates that it is taking a high-level conceptual view of the entire load/unload network. The city will now have a solid baseline of information to move forward on myriad policy decisions. This commitment to creating a private load/unload infrastructure inventory is significant because infrastructure is often identified as an essential element in making urban freight delivery more efficient. But because these facilities are privately owned and managed, policymakers and stakeholders lack information about them—information critical to urban planning. By and large, this private infrastructure has been a missing piece of the urban freight management puzzle. The work represented in this section fills a critical knowledge gap that can help advance efforts to make urban freight delivery more efficient in increasingly dense, constrained cities, like Seattle.

Without having accurate, up-to-date information on the full load/unload network infrastructure—including the private infrastructure addressed here—cities face challenges in devising effective strategies to minimize issues that hamper urban freight delivery efficiency, such as illegal parking and congestion. Research has shown that these issues are directly related to infrastructure (specifically, a lack thereof). (4) A consultant report for the New York Department of Transportation found that the limited data on private parking facilities for freight precluded development of solutions that reduce double parking, congestion and other pertinent last-mile freight challenges. (5) The report also found that the city’s off-street loading zone policy remained virtually unchanged for 65 years (despite major changes like the advent and boom of e-commerce.)

Local authorities often rely heavily on outside consultants to address urban freight transport issues because these authorities generally lack in-house capacity on urban freight. (6) Cities can use the replicable data-collection method developed here to build (and maintain) their own database of private loading/unloading infrastructure, thereby bolstering their in-house knowledge and planning capacity. Appendix C includes a Step-by-Step Toolkit for a Private Load/Unload Space Inventory that cities, researchers, and other parties can freely use.

The method in that toolkit builds—and improves—on the prior data-collection method UFL used to inventory private infrastructure in the dense urban neighborhoods of Downtown Seattle, Uptown and South Lake Union in early 2017 (Phase 1). The innovative, low-cost method ensures standardized, ground-truthed, high-quality data and is practical to carry out as it does not require prior permission and lengthy approval times to complete.

This inventory report’s two key findings are:

  1. Data collectors in this study identified, examined, and collected key data on 92 private loading docks, bays and areas across 421 city blocks in the neighborhoods of Capitol Hill, First Hill, and a small segment of the International District east of I-5. By contrast, the early 2017 inventory in Downtown Seattle, Uptown, and South Lake Union identified 246 private docks, bays and areas over 523 blocks—proportionally more than twice the density of private infrastructure of Capitol Hill and First Hill. This finding is not surprising. While all the inventoried neighborhoods are in the broad Greater Downtown, they are fundamentally different neighborhoods with different built environments, land use, and density. Variable demand for private infrastructure—and the resulting supply—stems from those differences.
  2. A trust relationship with the private sector is essential to reduce uncertainty in this type of work. UFL members added immense value by ground-truthing this work and playing an active role in improving inventory results. When data collectors in the field found potential freight loading bays with closed doors (preventing them from assessing whether the locations were, in fact, used for freight deliveries), UPS had their local drivers review the closed-door locations as part of their work in the Urban Freight Lab. The UPS review allowed the researchers to rule out 186 of the closed-door locations across this and the earlier 2017 data collection, reducing uncertainty in the total inventory from 33% to less than 1%.

This report is part of a broader suite of UFL research to date that equips Seattle with an evidence-based foundation to actively and effectively manage Greater Downtown load/unload space as a coordinated network. The UFL has mapped the location and features of the legal landing spots for trucks across the Greater Downtown, enabling the city to model myriad urban freight scenarios on a block-by-block level. To the research team’s knowledge, no other city in the U.S. or the E.U. has this data trove. The findings in this report, together with all the UFL research conducted and GIS maps and databases produced to date, give Seattle a technical baseline to actively manage the Greater Downtown’s load/unload network to improve the goods delivery system and mitigate gridlock.

The UFL will pilot such active management on select Greater Downtown streets in Seattle and Bellevue, Washington, to help goods delivery drivers find a place to park without circling the block in crowded cities for hours, wasting time and fuel and adding to congestion. (7) One of the pilot’s goals is to add more parking capacity by using private infrastructure more efficiently, such as by inviting building managers in the test area to offer off-peak load/unload space to outside users. The U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy under the Vehicles Technologies Office is funding the project.

The project partners will integrate sensor technologies, develop data platforms to process large data streams, and publish a prototype app to let delivery firms know when a parking space is open – and when it’s predicted to be open so they can plan to arrive when another truck is leaving. This is the nation’s first systematic research pilot to test proof of concept of a functioning system that offers commercial vehicle drivers and dispatchers real-time occupancy data on load/unload spaces–and test what impact that data has on commercial driver behavior. This pilot can help inform other cities interested in taking steps to actively manage their load/unload network.

Actively managing the load/unload network is more imperative as the city grows denser, the e-commerce boom continues, and drivers of all vehicle types—freight, service, passenger, ride-sharing and taxis—jockey for finite (and increasingly valuable) load/unload space. Already, Seattle ranks as the sixth most-congested city in the country.

Recommended Citation:
Urban Freight Lab (2020). The Final 50 Feet of the Urban Goods Delivery System: Phase 2, Completing Seattle’s Greater Downtown Inventory of Private Loading/Unloading Infrastructure.
Student Thesis and Dissertations

Preparing Cities for Package Demand Growth: Predicting Neighborhood Demand and Implementing Truck VMT Reduction Strategies

Publication Date: 2018
Summary:

E-commerce has empowered consumers to order goods online from anywhere in the world with just a couple of clicks. This new trend has led to significant growth in the number of package deliveries related to online shopping. Seattle’s freight infrastructure is challenged to accommodate this freight growth. Commercial vehicles can already be seen double parked or parked illegally on the city’s streets impacting traffic flow and inconveniencing other road users. It is vital to understand how the package demand is growing in the neighborhoods and what freight trips reduction strategies can cities implement to mitigate the freight growth. The purpose of the research is to analyze Vehicle Miles Traveled (VMT) reduction strategies in the neighborhoods with different built environment characteristics. First, the impact of individual factors on person’s decision to order goods online for home delivery is analyzed. A predictive model was built that estimates online order probability based on these factors. This model is then applied to synthetic Seattle population to produce estimated demand levels in each neighborhood. Second, two VMT reduction strategies were modeled and analyzed: 1) decreasing number of trucks needed to deliver neighborhoods’ package demand and 2) package locker implementation. Based on packages demand and built environment characteristics, two neighborhoods were chosen for a case study. ArcGIS toolbox was developed to generate delivery stops on the route, ArcGIS Network Analyst was used to make a delivery route and calculate VMT. It was found that VMT reduction strategies have different effects on the delivery system in two neighborhoods. Delivering neighborhoods’ demand in a smaller number of trucks would save slightly more VMT in a dense urban area compared to suburban one. Moreover, since the traffic perception by different road users varies by neighborhood, VMT reduction strategies will be more critical to implement in dense urban areas. Locker implementation strategy will also be more effective in VMT reduction in a dense urban area due to high residential density.

Authors: Polina Butrina
Recommended Citation:
Butrina, Polina (2018). Preparing Cities for Package Demand Growth: Predicting Neighborhood Demand and Implementing Truck VMT Reduction Strategies. University of Washington Master's Degree Thesis.
Thesis: Array

The Final 50 Feet of the Urban Goods Delivery System: Documenting Loading Bays, Demonstrating Parcel Lockers’ Proof of Concept & Tracking Curb Use in Seattle’s Interconnected Load/Unload Network (Task Order 2)

Part of the Final 50 Feet Research Program, this project contains: a curb occupancy study, a survey of First and Capitol Hill Loading Bays, a pilot test at Seattle Municipal Tower, and the development of a toolkit.

Private Loading Bays and Docks Inventory Study

Taken together with the Urban Freight Lab’s earlier private infrastructure inventory (Seattle Center City Alley Infrastructure Inventory and Occupancy Study 2018) in Downtown Seattle, Uptown, and South Lake Union, this report finalizes the creation of a comprehensive Center City inventory of private loading/unloading infrastructure.

To the research team’s knowledge, Seattle is the first city to maintain a database with the location and features of private loading/unloading infrastructure (meaning, out of the public right of way). This matters because these facilities are privately owned and managed, cities lack information about them—information critical to urban planning. The private infrastructure has been a missing piece of the urban freight management puzzle. The work in this report helps complete that puzzle and advance efforts to make urban freight delivery more efficient in increasingly dense, constrained cities, such as Seattle.

Key Findings from Private Loading Bays and Docks Inventory

Data collectors in this study identified, examined, and collected key data on 92 private loading docks, bays and areas across 421 city blocks in the neighborhoods of Capitol Hill, First Hill, and a small segment of the International District east of I-5.  The earlier inventory in Downtown Seattle, Uptown, and South Lake Union had proportionally more than twice the density of private infrastructure of Capitol Hill and First Hill documented in this report. This finding is unsurprising. While all the inventoried neighborhoods are in the broad Center City area, they are fundamentally different neighborhoods with different built environments, land use, and density. Variable demand for private infrastructure—and the resulting supply—stems from those differences.

Researchers found that a trust relationship with the private sector is essential to reduce uncertainty in this type of work. UPS’ collaboration helped reduce uncertainty in the total inventory from 33% to less than 1%.

Curb Occupancy Study

This study gives the city on-the-ground data on the current use and operational capacity of the curb for commercial vehicles, documenting vehicle parking behavior in a three-by-three city block grid around each of five prototype Center City buildings: a hotel, a high-rise office building, an historical building, a retail center, and a residential tower. These buildings were intentionally chosen to deepen the city’s understanding of the Center City; they were part of UFL’s earlier SDOT-sponsored research tracking how goods move vertically within a building in the Final 50 Feet of the goods delivery system.

Significantly, this study captured the parking behavior of commercial vehicles everywhere along the curb as well as the parking activities of all vehicles (including passenger vehicles) in commercial vehicle loading zones (CVLZs.) The research team documented: (1) which types of vehicles parked in CVLZs and for how long, and; (2) how long commercial vehicles (CVs) parked in CVLZs, in metered parking, and in passenger load zones (PLZ) and other unauthorized spaces. (Passenger vehicles in this study were not treated as commercial vehicles, due to challenges in systematically identifying whether passenger vehicles were making deliveries or otherwise carrying a commercial permit.)

Key Findings from Curb Occupancy Study

  1. Commercial and passenger vehicle drivers use CVLZs and PLZs fluidly: commercial vehicles are parking in PLZs and passenger vehicles are parking in CVLZs.
  2. Most commercial vehicle (CV) demand is for short-term parking: 15 or 30 minutes.
  3. Thirty-six percent of the total CVs parked along the curb were service CVs, showing the importance of factoring their behavior and future demand into urban parking schemes.
  4. Forty-one percent of commercial vehicles parked in unauthorized locations. But a much higher percentage parked in unauthorized areas near the two retail centers (55% – 65%) when compared to the predominantly office and residential areas (27% – 30%). The research team found that curb parking behavior is associated with granular, building-level urban land use. This occurred even as other factors such as the total number, length and ratio of CVLZs versus PLZs varied widely across the five study areas.

Seattle Municipal Tower Common Carrier Locker Pilot

The UFL’s 2017 research (The Final 50 Feet Urban Goods Delivery System Research Scan and Data Collection Project) documented that of the 20 total minutes delivery drivers spent on average in the 62-story Seattle Municipal Tower, 12.2 of those minutes were spent going floor-to-floor in freight elevators and door-to-door to tenants on multiple floors. The UFL recognized that cutting those two steps from the delivery process could slash delivery time in the Tower by more than half—which would translate into a substantial reduction in truck dwell time.

This report provides compelling evidence of the effectiveness of a new urban goods delivery system strategy: common carrier lockers that create parcel delivery density and provide secure delivery locations in public spaces. Parcel lockers are widely available secure, automated, self-service storage systems that are typically owned by a single retailer or delivery firm and placed inside private property. In contrast, common carrier lockers are open to multiple retailers and delivery carriers. This pilot, which placed a common carrier locker system in the 62-floor Seattle Municipal Tower for ten days in spring 2018, was intentionally carried out in a public space.

Key Findings from Seattle Municipal Tower Common Carrier Locker Pilot

The common carrier locker both reduced total delivery time by 78% when compared to traditional floor-to-floor, door-to-door delivery method and cut the number of failed first parcel deliveries to zero.

Paper

Providing Curb Availability Information to Delivery Drivers Reduces Cruising for Parking

 
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Publication: Scientific Reports
Volume: (2022) 12:19355
Publication Date: 2022
Summary:

Delivery vehicle drivers are experiencing increasing challenges in finding available curb space to park in urban areas, which increases instances of cruising for parking and parking in unauthorized spaces. Policies traditionally used to reduce cruising for parking for passenger vehicles, such as parking fees and congestion pricing, are not effective at changing delivery drivers’ travel and parking behaviors.

Intelligent parking systems that use real-time curb availability information to better route and park vehicles can reduce cruising for parking, but they have never been tested for delivery vehicle drivers.

This study tested whether providing real-time curb availability information to delivery drivers reduces the travel time and distance spent cruising for parking. A curb parking information system deployed in a study area in Seattle, Wash., displayed real-time curb availabilities on a mobile app called OpenPark. A controlled experiment assigned drivers’ deliveries in the study area with and without access to OpenPark.

The data collected showed that when curb availability information was provided to drivers, their cruising for parking time significantly decreased by 27.9 percent, and their cruising distance decreased by 12.4 percent. These results demonstrate the potential for implementing intelligent parking systems to improve the efficiency of urban logistics systems.

Recommended Citation:
Dalla Chiara, G., Krutein, K.F., Ranjbari, A. et al. Providing curb availability information to delivery drivers reduces cruising for parking. Sci Rep 12, 19355 (2022). https://doi.org/10.1038/s41598-022-23987-z
Article

Urban Freight Innovation: Leading-Edge Strategies for Smart Cities

 
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Publication: Coast Guard Journal of Safety & Security at Sea, Proceedings of the Marine Safety & Security Council
Volume: 78:02:00
Publication Date: 2021
Summary:

Competition throughout the urban freight supply chain is steadily growing. Companies need to devise innovative methods for the transportation of goods from raw materials all the way to the final consumer. From concept to practice, it can be challenging to identify affordable solutions. This article highlights recent research conducted by the University of Washington’s Urban Freight Lab and its partners to explore new methods to reduce transportation costs, improve the customer experience, reduce carbon footprint, and reduce urban congestion after goods leave the shipping docks.

Recommended Citation:
Bill Keough, Anne Goodchild, & Giacomo Dalla Chiara. (2021). Urban Freight Innovation: Leading-Edge Strategies for Smart Cities. Proceedings of the Marine Safety & Security Council, 78(2).
Technical Report

Developing Design Guidelines for Commercial Vehicle Envelopes on Urban Streets (Technical Report)

 
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Publication Date: 2020
Summary:

This report presents research to improve the understanding of curb space and delivery needs in urban areas. Observations of delivery operations to determine vehicle type, loading actions, door locations, and accessories used were conducted. Once common practices had been identified, then simulated loading activities were measured to quantify different types of loading space requirements around commercial vehicles. This resulted in a robust measurement of the operating envelope required to reduce conflicts between truck loading and unloading activities with adjacent pedestrian, bicycle, and motor vehicle activities.

A bicycling simulator experiment examined bicycle and truck interactions in a variety of CVLZ designs. The experiment was completed by 50 participants. The bicycling simulator collected data regarding a participant’s velocity, lane position, and acceleration. Three independent variables were included in this experiment: pavement marking (No, Minimum, or Recommended CVLZ), Courier Position (none, behind vehicle, on driver’s side), and Accessory (none or hand truck). The results support the development of commercial loading zone design recommendations that will allow our urban street system to operate more efficiently, safely, and reliably for all users.

As urban populations and freight activities grow, there is continued pressure for multiple modes to share urban streets and compete for curb space. Cities are recognizing curb space as valuable public real estate that must be better understood and designed in order to improve the quality of life for residents and the transportation systems of cities.

Current commercial vehicle load zones are not well designed to accommodate safe, efficient, and reliable deliveries. Commercial vehicles using urban curbside loading zones are not typically provided with a consistent envelope, or a space allocation adjacent to the vehicle for deliveries. While completing loading and unloading activities, drivers are required to walk around the vehicle, extend ramps and handling equipment, and maneuver goods; these activities require space around the vehicle. But these unique space needs of delivery trucks are not commonly acknowledged by or incorporated in current urban design practices. Due to this lack of a truck envelope, drivers of commercial vehicles are observed using pedestrian pathways and bicycling infrastructure for unloading activities as well as walking in traffic lanes. These actions put themselves, and other road users in direct conflict and potentially in harm’s way.

This project improves our understanding of curb space requirements and delivery needs in urban areas. The research approach involved the observation of delivery activities operations to measure the envelope required for different vehicle types, loading actions, door locations, and accessories. Once the envelope was determined the (simulator was used).

Common loading and unloading practices and where freight activities occurred in relationship to trucks (sides, back, or front) were initially identified by observing twenty-five curbside deliveries in urban Seattle. The research team next collaborated with three delivery companies with active operations in urban areas. These companies proved access to their facilities, nine different urban delivery vehicles, and a variety of loading accessories. The research team initially recorded the commercial vehicle’s closed vehicle footprint without any possible extensions engaged. Next the open vehicle footprint was measured when all vehicle parts such as doors, lift gates, and ramps were extended for delivery operations. Finally, the active vehicle footprint was recorded as the companies’ drivers simulated deliveries which allowed the research team to observe and precisely measure driver and accessory paths around the vehicle.

This process resulted in robust measurements, tailored to different types of truck configurations, loading equipment and accessories, of the operating envelope around a commercial vehicle. These measurements, added to the foot print of a user-selected delivery truck sizes, provides the envelope needed to reduce conflicts between truck loading and unloading activities and adjacent pedestrian, bicycle, and motor vehicle activities.

A bicycling simulator experiment examined bicycle and truck interactions in a variety of CVLZ designs. The experiment was successfully completed by 50 participants. The bicycling simulator collected data regarding a participant’s velocity, lane position, and acceleration.

Three independent variables were included in this experiment: pavement marking (No, Minimum, or Recommended CVLZ), Courier Position (none, behind vehicle, on driver’s side), and Accessory (none or hand truck). Several summary observations resulted from the bicycling simulator experiment:

  • A bicyclist passing by no loading zone (truck is obstructing bike lane) or minimum loading zone (truck next to the bike lane without a buffer) had a significantly lower speed than a bicyclist passing a preferred loading zone (truck has an extra buffer). A smaller loading zone had a ix decreasing effect on mean speed, with a courier exiting on the driver side of the truck causing the lowest mean speed.
  • A courier on the driver’s side of the truck had an increasing effect on mean lateral position, with a no CVLZ causing the highest divergence from the right edge of the bike lane. Consequently, bicyclists shifted their position toward the left edge of bike lane and into the adjacent travel lane. Moreover, some bicyclists used the crosswalk to avoid the delivery truck and the travel lane.
  • In the presence of a courier on the driver’s side of the truck, the minimum CVLZ tended to be the most disruptive for bicyclists since they tended to depart from the bike lane toward the adjacent vehicular travel lane.
  • When the bicyclist approached a delivery vehicle parked in the bicycle lane, they had to choose between using the travel lane or the sidewalk. About one third of participants decided to use the sidewalk.

From our results, commercial loading zone best practice envelope recommendations can be developed that will allow our urban street system to operate more efficiently, safely, and reliably for all users

Authors: Dr. Ed McCormackDr. Anne GoodchildManali Sheth, David S. Hurwitz, Hisham Jashami, Douglas P. Cobb
Recommended Citation:
McCormack, Ed. Anne Goodchild, Manali Sheth, et.al. (2020). Developing Design Guidelines for Commercial Vehicle Envelopes on Urban Streets.
Report

Evaluation of Sound Transit Train Stations and Transit-Oriented Development Areas for Common Carrier Locker Systems (Final Report)

 
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Publication Date: 2018
Summary:

The rapid expansion of ecommerce has flooded American cities with delivery trucks, just as those cities are experiencing booming population growth. Retailers need a more efficient, reliable, and cost-effective way to deliver goods in increasingly crowded urban environments. For their part, cities like Seattle want to minimize traffic congestion, both sustain quality of life for residents and ensure a smooth flow of goods and services.

Common carrier parcel lockers hold tremendous potential for streamlining the urban goods delivery system and addressing these challenges. This research study explores the viability of providing public right of way for common carrier lockers at or near transit stations in Seattle, a ground-breaking step toward improving freight delivery in the city’s fast-growing urban core.

Recommended Citation:
Supply Chain Transportation & Logistics Center. (2018) Evaluation of Sound Transit Train Stations and Transit Oriented Development Areas for Common Carrier Locker Systems.

Greater Downtown Seattle Area Cordon Data Collection for Trucks and Cars (Task Order 5)

Abstract: The City of Seattle Department of Transportation (SDOT) engaged the Urban Freight Lab to establish a baseline cordon truck and car count for the Greater Downtown area before major construction, transit, and traffic changes occurred in fall 2018. The UFL developed a detailed typology of all commercial vehicle types, and is now assigning every commercial vehicle crossing the cordon to a category that may be tied to its use. Examples of these detailed use types include food delivery, garbage pick up, construction, and service vans. The researchers are analyzing video data provided by SDOT of 30 primary gateway intersections around the perimeter of the Greater Downtown area, which includes Seattle’s downtown, uptown (lower Queen Anne), South Lake Union, and Capital and First Hill urban centers.

This research will enable the city to understand much more about the economic sectors served by commercial vehicles that enter and leave the Greater Downtown area. When this project is completed, SDOT will be the first major city department of transportation in the nation to develop a database that provides such detailed commercial vehicle use information.

Presentation:
Cracking the Freight Data Nut: Estimating Center City Inbound and Outbound Vehicle Volumes from Cordon Counts (METRANS International Urban Freight Conference, October 17, 2019)

Data Visualization:
Cordon Counts: A Data Visualization of Vehicles Moving in and out of Seattle’s City Center

Paper

What is the Right Size for a Residential Building Parcel Locker?

 
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Publication: Transportation Research Record: Journal of the Transportation Research Board
Publication Date: 2022
Summary:

Common-carrier parcel lockers present a solution for decreasing delivery times, traffic congestion, and emissions in dense urban areas through consolidation of deliveries. Multi-story residential buildings with large numbers of residents, and thus a high volume of online package orders, are one of the best venues for installing parcel lockers. But what is the right size for a residential building locker that would suit the residents’ and building managers’ needs?

Because of the novelty of parcel lockers, there is no clear guideline for determining the right locker size and configuration for a residential building given the resident population. A small locker would result in packages exceeding capacity and being left in the lobby, increasing the building manager’s workload and confusing and inconveniencing users. On the other hand, a large locker is more expensive, more difficult to install, and unappealing to residents.

To answer this question, we installed a common-carrier parcel locker in a residential building in downtown Seattle, WA, U.S.A. Through collecting detailed data on locker usage from the locker provider company, we studied and quantified carriers’ delivery patterns and residents’ online shopping and package pickup behaviors. We then used this information to model the locker delivery and pickup process, and simulated several locker configurations to find the one that best suits the delivery needs of the building.

These findings could aid urban planners and building managers in choosing the right size for residential building lockers that meet delivery demand while minimizing costs and contributing to environmental benefits.

Recommended Citation:
Ranjbari, A., Diehl, C., Chiara, G. D., & Goodchild, A. (2022). What is the Right Size for a Residential Building Parcel Locker?. Transportation Research Record, 03611981221123807. https://doi.org/10.1177/03611981221123807