Search Results for: environment

Author: Dr. Jean-Paul Rodrigue The physical environment imposes major constraints on transportation systems, in terms of what mode can be used, the extent of the service, its costs, capacity, and reliability. 1. Physical Constraints Since transportation involves a set of technologies designed to overcome the constraints of space, particularly distance,

Transportation systems are linked with a wide range of environmental considerations from the global to the local. Environmental impacts are related to transport modes, their energy supply systems, their emissions, and the infrastructures over which they operate. While consuming large quantities of energy, especially oil, vehicles emit numerous pollutants such

Source: adapted from Dablanc, L. (2009) Freight Transport, A Key for the New Urban Economy. World Bank, Freight Transport for Development: a Policy Toolkit, July.Note: Alternative refers to modes such as electric and CNG vehicles as well as bicycles. What can be labeled the “motor transition” for urban freight is

An array of strategies can be considered to mitigate urban freight distribution problems, most of which are related to congestion: Most of these strategies involve cities in advanced economies and would not apply well in cities in developing countries, which are facing their own array of urban freight distribution issues.

Authors: Dr. Jean-Paul Rodrigue and Dr. Laetitia Dablanc From a freight distribution perspective, a city can be considered a bottleneck where transportation resources are scarce relative to the potential demand and are thus highly valuable. Freight is competing for the use of urban space. 1. Rationalization of Deliveries As a

Authors: Dr. Heleen Buldeo Rai, Sabrina Touami and Dr. Laetitia Dablanc Automation for urban deliveries can be classified as sidewalk robots, road robots, and drones. They employ air or road infrastructure and differ in speed, automation level, size, and carrying capacity. 1. Advantages of vehicle automation Automation promises many advantages

Authors: Dr. Jean-Paul Rodrigue and Dr. Laetitia Dablanc Last-mile facilities are designed to support the final segment or urban deliveries, mostly through deconsolidation to delivery vehicles. 1. Fast Delivery Hubs Three main types of distribution facilities support last-mile for urban deliveries, which take place in specific urban areas (e.g. districts or neighborhoods).

Authors: Dr. Jean-Paul Rodrigue & Dr. Laetitia Dablanc City logistics requires an understanding of urban geography and supply chain management. Urban freight distribution has a unique array of challenges as a multidisciplinary field. It reflects many dimensions of contemporary logistics, such as route and delivery sequence selection. It also exacerbates

Urban passenger and freight transport systems are separate systems sharing similar infrastructure, but impacted differently by density. The common perspective in urban planning is that higher densities are preferable since they generate economies for services and opportunities in the use of public transit. However, high concentration levels generate conflicts between

Authors: Dr. Jean-Paul Rodrigue & Dr. Laetitia Dablanc Urban areas have a diversity of freight profiles in terms of the freight they generate and how it circulates. 1. Logistics and the Global Urban Landscape Urban economies are evolving rapidly towards a higher level of material intensiveness as global incomes are rising. Moving