Publications
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- "Dwell time"
In transportation, dwell time is the time a vehicle spends at a scheduled stop without moving. A shorter dwell time is more desirable than a longer dwell time.
Paper
Published: 2023
Journal/Book: Transportation
Summary:
With the dramatic and recent growth in demand for curbside pick-up and drop-off by ride-hailing services, as well as online shopping and associated deliveries, balancing the needs of roadway users is increasingly critical. Local governments lack tools to evaluate the impacts of curb management strategies that prioritize different users’ needs.
With the dramatic and recent growth in demand for curbside pick-up and drop-off by ride-hailing services, as well as online shopping and associated deliveries, balancing the needs of roadway users is increasingly critical. Local governments lack tools to evaluate the impacts of curb management strategies that prioritize different users’ needs.
Paper
Published: 2023
Journal/Book: Transportation Research Part E: Logistics and Transportation Review
Summary:
Common carrier parcel lockers have emerged as a secure, automated, self-service means of delivery consolidation in congested urban areas, which are believed to mitigate last-mile delivery challenges by reducing out-of-vehicle delivery times and consequently vehicle dwell times at the curb. However, little research exists to empirically demonstrate the environmental and efficiency gains from this technology.
Common carrier parcel lockers have emerged as a secure, automated, self-service means of delivery consolidation in congested urban areas, which are believed to mitigate last-mile delivery challenges by reducing out-of-vehicle delivery times and consequently vehicle dwell times at the curb. However, little research exists to empirically demonstrate the environmental and efficiency gains from this technology.
Keywords:
Common carrier parcel lockersDelivery operations and managementDwell timeLast-mile (final mile) delivery
Common carrier parcel lockersDelivery operations and managementDwell timeLast-mile (final mile) delivery
Paper
Published: 2022
Journal/Book: IEEE Transactions on Vehicular Technology
Summary:
Predicting the stay time of private cars has various applications in location-based services and traffic management. Due to the associated randomness and uncertainty, achieving the promising performance of stay time prediction is a challenge. We propose an RNN-based encoder model to solve this problem, which consists of three components, i.e., an encoder module, an exception module, and an MLP dropout.
Predicting the stay time of private cars has various applications in location-based services and traffic management. Due to the associated randomness and uncertainty, achieving the promising performance of stay time prediction is a challenge. We propose an RNN-based encoder model to solve this problem, which consists of three components, i.e., an encoder module, an exception module, and an MLP dropout.
Presentation
Published: 2022
Journal/Book: 9th International Urban Freight Conference, Long Beach, May 2022
Summary:
Common-carrier parcel lockers have emerged as a secure, automated, self-service means of delivery consolidation in congested urban areas, which are believed to mitigate last-mile delivery challenges by reducing out-of-vehicle delivery times and consequently vehicle dwell times at the curb. However, little research exists to empirically demonstrate the environmental and efficiency gains from this technology.
Common-carrier parcel lockers have emerged as a secure, automated, self-service means of delivery consolidation in congested urban areas, which are believed to mitigate last-mile delivery challenges by reducing out-of-vehicle delivery times and consequently vehicle dwell times at the curb. However, little research exists to empirically demonstrate the environmental and efficiency gains from this technology.
Paper
Published: 2021
Journal/Book: Transportation Research Record: Journal of the Transportation Research Board
Summary:
As ecommerce and urban deliveries spike, cities grapple with managing urban freight more actively. To manage urban deliveries effectively, city planners and policy makers need to better understand driver behaviors and the challenges they experience in making deliveries. In this study, we collected data on commercial vehicle (CV) driver behaviors by performing ridealongs with various logistics carriers.
As ecommerce and urban deliveries spike, cities grapple with managing urban freight more actively. To manage urban deliveries effectively, city planners and policy makers need to better understand driver behaviors and the challenges they experience in making deliveries. In this study, we collected data on commercial vehicle (CV) driver behaviors by performing ridealongs with various logistics carriers.
Topics:
Curb ManagementThe Final 50 Feet of the Urban Goods Delivery SystemLogistics and Supply ChainSurface Transportation
Curb ManagementThe Final 50 Feet of the Urban Goods Delivery SystemLogistics and Supply ChainSurface Transportation
Keywords:
Parking decision-making and parking choiceCommercial vehicle parkingDriver behaviorDwell timeCommercial vehicle and truck movementsUrban freight distribution
Parking decision-making and parking choiceCommercial vehicle parkingDriver behaviorDwell timeCommercial vehicle and truck movementsUrban freight distribution
Paper
Published: 2021
Journal/Book: Transportation Research Record: Journal of the Transportation Research Board
Summary:
As e-commerce and urban deliveries spike, cities grapple with managing urban freight more actively. To manage urban deliveries effectively, city planners and policy makers need to better understand driver behaviors and the challenges they experience in making deliveries. In this study, we collected data on commercial vehicle (CV) driver behaviors by performing ridealongs with various logistics carriers.
As e-commerce and urban deliveries spike, cities grapple with managing urban freight more actively. To manage urban deliveries effectively, city planners and policy makers need to better understand driver behaviors and the challenges they experience in making deliveries. In this study, we collected data on commercial vehicle (CV) driver behaviors by performing ridealongs with various logistics carriers.
Keywords:
Driver behaviorDwell timeParking cruising behaviorCommercial vehicle and truck movementsParking decision-making and parking choice
Driver behaviorDwell timeParking cruising behaviorCommercial vehicle and truck movementsParking decision-making and parking choice
Student Thesis and Dissertations
Published: 2021
Summary:
The demand for goods and services is rapidly increasing in cities, in part due to the rise in online shopping and more varied delivery options. Cities around the world are experiencing an influx of goods pickup and delivery activities. The movement of goods within urban areas can be very constraining with high levels of congestion and insufficient curb spaces.
The demand for goods and services is rapidly increasing in cities, in part due to the rise in online shopping and more varied delivery options. Cities around the world are experiencing an influx of goods pickup and delivery activities. The movement of goods within urban areas can be very constraining with high levels of congestion and insufficient curb spaces.
Technical Report
Published: 2021
Journal/Book: U.S. Department of Energy
Summary:
The objectives of this project are to develop and implement a technology solution to support research, development, and demonstration of data processing techniques, models, simulations, a smart phone application, and a visual-confirmation system to: Reduce delivery vehicle parking seeking behavior by approximately 20% in the pilot test area, by returning current and predicted load/unload space occupancy information to users on a web-based and/or mobile platform, to inform real-time parking decis…
The objectives of this project are to develop and implement a technology solution to support research, development, and demonstration of data processing techniques, models, simulations, a smart phone application, and a visual-confirmation system to: Reduce delivery vehicle parking seeking behavior by approximately 20% in the pilot test area, by returning current and predicted load/unload space occupancy information to users on a web-based and/or mobile platform, to inform real-time parking decis…
Keywords:
Energy usageSustainabilityUrban freight distributionParking decision-making and parking choiceParking-seekingCity logisticsDecarbonizationDwell time
Energy usageSustainabilityUrban freight distributionParking decision-making and parking choiceParking-seekingCity logisticsDecarbonizationDwell time
Technical Report
Published: 2020
Summary:
This Toolkit is designed to help transportation professionals and researchers gather key data needed to make the Final 50 Feet segment function as efficiently as possible, reducing both the time trucks park in load/unload spaces and the number of failed first delivery attempts.
This Toolkit is designed to help transportation professionals and researchers gather key data needed to make the Final 50 Feet segment function as efficiently as possible, reducing both the time trucks park in load/unload spaces and the number of failed first delivery attempts.
Topics:
The Final 50 Feet of the Urban Goods Delivery SystemSurface TransportationUrban Goods Delivery and Land Use
The Final 50 Feet of the Urban Goods Delivery SystemSurface TransportationUrban Goods Delivery and Land Use
Report
Published: 2020
Summary:
This study performed an empirical analysis to evaluate the implementation of a cargo e-bike delivery system pilot tested by the United Parcel Service, Inc. (UPS) in Seattle, Washington. During the pilot, a cargo e-bike with a removable cargo container was used to perform last-mile deliveries in downtown Seattle. Cargo containers were pre-loaded daily at the UPS Seattle depot and loaded onto a trailer, which was then carried to a parking lot in downtown.
This study performed an empirical analysis to evaluate the implementation of a cargo e-bike delivery system pilot tested by the United Parcel Service, Inc. (UPS) in Seattle, Washington. During the pilot, a cargo e-bike with a removable cargo container was used to perform last-mile deliveries in downtown Seattle. Cargo containers were pre-loaded daily at the UPS Seattle depot and loaded onto a trailer, which was then carried to a parking lot in downtown.
Topics:
Bicycle Research: Cargo Bikes and Bike-Truck InteractionsThe Final 50 Feet of the Urban Goods Delivery SystemSustainable Freight
Bicycle Research: Cargo Bikes and Bike-Truck InteractionsThe Final 50 Feet of the Urban Goods Delivery SystemSustainable Freight
Keywords:
Cargo bikes (electric and e-assist)Dwell timeFailed deliveryParking cruising behaviorLast-mile (final mile) delivery
Cargo bikes (electric and e-assist)Dwell timeFailed deliveryParking cruising behaviorLast-mile (final mile) delivery
Related Research Project:
UPS E-Bike Delivery Pilot Test in Seattle: Analysis of Public Benefits and Costs (Task Order 6)
UPS E-Bike Delivery Pilot Test in Seattle: Analysis of Public Benefits and Costs (Task Order 6)
Technical Report
Published: 2019
Journal/Book: U.S. Department of Energy
Summary:
The objectives of this project are to develop and implement a technology solution to support research, development, and demonstration of data processing techniques, models, simulations, a smart phone application, and a visual-confirmation system to: Reduce delivery vehicle parking seeking behavior by approximately 20% in the pilot test area, by returning current and predicted load/unload space occupancy information to users on a web-based and/or mobile platform, to inform real-time parking decis…
The objectives of this project are to develop and implement a technology solution to support research, development, and demonstration of data processing techniques, models, simulations, a smart phone application, and a visual-confirmation system to: Reduce delivery vehicle parking seeking behavior by approximately 20% in the pilot test area, by returning current and predicted load/unload space occupancy information to users on a web-based and/or mobile platform, to inform real-time parking decis…
Keywords:
Parking-seekingCity logisticsDwell timeEmissionsLoading and unloading operationsReal-time curb visibilityCurb occupancy
Parking-seekingCity logisticsDwell timeEmissionsLoading and unloading operationsReal-time curb visibilityCurb occupancy
Report
Published: 2018
Summary:
This report provides compelling evidence of the effectiveness of a new urban goods delivery system strategy: Common Carrier Locker Systems that create parcel delivery density and provide secure delivery locations in public spaces.
This report provides compelling evidence of the effectiveness of a new urban goods delivery system strategy: Common Carrier Locker Systems that create parcel delivery density and provide secure delivery locations in public spaces.
Keywords:
Common carrier parcel lockersDwell timeFailed deliverySeattle Municipal Tower (SMT)Last-mile (final mile) deliveryFinal 50 Feet
Common carrier parcel lockersDwell timeFailed deliverySeattle Municipal Tower (SMT)Last-mile (final mile) deliveryFinal 50 Feet
Paper
Published: 2018
Journal/Book: Transportation Research Record: Journal of the Transportation Research Board
Summary:
Movement of goods within a central business district (CBD) can be very constraining with high levels of congestion and insufficient curb spaces. Pick-up and delivery activities encompass a significant portion of urban goods movement and inefficient operations can negatively impact the already highly congested areas and truck dwell times. Identifying and quantifying the delivery processes within the building is often difficult.
Movement of goods within a central business district (CBD) can be very constraining with high levels of congestion and insufficient curb spaces. Pick-up and delivery activities encompass a significant portion of urban goods movement and inefficient operations can negatively impact the already highly congested areas and truck dwell times. Identifying and quantifying the delivery processes within the building is often difficult.
Keywords:
Delivery operations and managementDwell timeFailed deliveryLoading and unloading operationsGoods movementLast-mile (final mile) deliveryFinal 50 Feet
Delivery operations and managementDwell timeFailed deliveryLoading and unloading operationsGoods movementLast-mile (final mile) deliveryFinal 50 Feet
Report
Published: 2018
Summary:
Urban Freight Lab’s foundational report is the first assessment in any American city of the privately-owned and operated elements of the Final 50 Feet of goods delivery supply chains (the end of the supply chain, where delivery drivers must locate both parking and end customers). These include curb parking spaces, private truck freight bays and loading docks, street design, traffic control, and delivery policies and operations within buildings.
Urban Freight Lab’s foundational report is the first assessment in any American city of the privately-owned and operated elements of the Final 50 Feet of goods delivery supply chains (the end of the supply chain, where delivery drivers must locate both parking and end customers). These include curb parking spaces, private truck freight bays and loading docks, street design, traffic control, and delivery policies and operations within buildings.
Report
Published: 2018
Summary:
Urban Freight Lab’s foundational report is the first assessment in any American city of the privately-owned and operated elements of the Final 50 Feet of goods delivery supply chains (the end of the supply chain, where delivery drivers must locate both parking and end customers). These include curb parking spaces, private truck freight bays and loading docks, street design, traffic control, and delivery policies and operations within buildings.
Urban Freight Lab’s foundational report is the first assessment in any American city of the privately-owned and operated elements of the Final 50 Feet of goods delivery supply chains (the end of the supply chain, where delivery drivers must locate both parking and end customers). These include curb parking spaces, private truck freight bays and loading docks, street design, traffic control, and delivery policies and operations within buildings.