We present a method for automated, empirical calibration of freeway traffic flow characteristics. The method uses 5-min flow and density values for a section of freeway and rapidly and reliably estimates key parameters such as free flow speed, capacity, critical density, congestion wave speed and jam density, which are key inputs to many macroscopic traffic simulation models. The method consist...

Vehicular ad hoc networks (VANET) are a Class of MANETs used for communication among vehicles and between vehicles and roadside equipment. VANET provide the communication framework for dissemination of safety critical message such as beacons and emergency messages. Due to the technological involvement there are more number of wireless devices, which also creates more congestion in the wireless ...

We present a linear mixed integer programming model for the time-dependent heterogeneous green vehicle routing and scheduling problem (GVRSP) with the objective of minimizing total carbon dioxide emissions and weighted tardiness. Instead of discrete time intervals, the proposed model takes the traveled distances of arcs in different time periods as decision variables to determine the travel sch...

In this paper we present queueing-theoretical methods for the modeling, analysis, and control of autonomous mobilityon-demand (MOD) systems wherein robotic, self-driving vehicles transport customers within an urban environment and rebalance themselves to ensure acceptable quality of service throughout the network. We first cast an autonomous MOD system within a closed Jackson network model with...

The growth of intelligent transport systems (ITS) has recently been quite fast and impressive, and various kinds of studies on ITS from the viewpoint of artificial intelligence have also been done [1][2][3][4][5]. However, there are still many problems that need to be solved and alleviating traffic congestion is one of the main issues. Reducing traffic congestion is quite urgent because the amo...

CODIA (Co-Operative Systems Deployment Impact Assessment) aimed to provide an independent assessment of direct and indirect impacts, costs and benefits of five co-operative systems: • Speed adaptation due to weather conditions, obstacles or congestion (V2I and I2Vcommunication) • Reversible lanes due to traffic flow (V2I and I2V) • Local danger / hazard warning (V2V) • Post crash warning (V2V) ...

This paper summarizes the status quo of intelligent traffic congestion control and vehicle following on road, puts forward key technology model its content control, elaborates in detail, research done, hoping to provide reference for related control.

A variety of policies to encourage carpooling in high-occupancy vehicle (HOV) lanes have been adopted by state and local governments in the US. These policies can either increase or decrease total congestion depending on whether congestion relief in mainline lanes outweighs increased HOV lane congestion. We estimate congestion cost functions for mainline and HOV lanes in Los Angeles and find co...

Communications between the Internet of Vehicles in smart cities helps increase awareness and safety among drivers. However, channel congestion problem is considered as a key challenge for communication networks due to continuing collection exchange traffic information dense environments. The degrades efficiency reliability ad hoc network. Therefore, adaptation data rate power control one effect...