Since the diversity of urban transport modes and growth public demands recently, it is essential to consider multiple mode options in network capacity problem. This paper derives a comprehensive model from single-mode transportation with only route choice multimodal both choice. To avoid biases evaluation capacity, two characteristics system are considered modeling formulating problem: (1) inte...

The role of transportation network companies (TNCs) in the urban transport system is under intense debate. In this study, we systematically assess three aspects net impacts TNCs on mobility United States—road congestion, transit ridership and private vehicle ownership—and examine how these have evolved over time. Based a set fixed-effect panel models estimated using metropolitan statistical are...

Solving traffic equilibrium problem, or “traffic assignment”, as the last step in Transportation Planning, distributes OD trip demands of a transportation network over the network links with regard to Traffic Equilibrium Law, and estimates the link flows. In formulations of traffic equilibrium which are based on path saving, the memory consumption is considerably affected by the number of effct...

This paper reviews the progress that has been made over the last half-century in modeling and analyzing the growth of transportation networks. An overview of studies has been provided following five main streams: network growth in transport geography; traffic flow, transportation planning, and network growth; statistical analyses of network growth; economics of network growth; and network scien...

This paper considers the problem of finding a quickest path between two points in the Euclidean plane in the presence of a transportation network. A transportation network consists of a planar network where each road (edge) has an individual speed. A traveller may enter and exit the network at any point on the roads. Along any road the traveller moves with a fixed speed depending on the road, a...

Network design problem is one of the most complicated and yet challenging problems in transportation planning. The Bi-level, non-convex and integer nature of network design problem has made it into one of the most complicated optimization problems. Inclusion of time dimension to the classical network design problem could add to this complexity. In this paper an Ant Colony System (ACS) has been ...

In this paper we present the problem of designing a three level hub center network. In our network, the top level consists of a complete network where a direct link is between all central hubs.  The second and third levels consist of star networks that connect the hubs to central hubs and the demand nodes to hubs and thus to central hubs, respectively. We model this problem in an incomplete net...

This effort focused on improving transportation security by making the objects (e.g. containers) being transported active agents in their own protection. Here, the objects are equipped with sensing and communication capabilities and are able to determine and communicate their sense of security throughout the dynamic transportation chain in a distributed manner. As part of the project, we have d...