congestion

Congestion Reduction via Personalized Incentives

Research Product Type
Research Report
With rapid population growth and urban development, traffic congestion has become an inescapable issue, especially in large cities. Many congestion reduction strategies have been proposed in the past, ranging from roadway extension to transportation demand management programs. In particular, congestion pricing schemes have been used as negative reinforcements for traffic control. This project studies a different approach of offering positive incentives to drivers to take alternative routes.

Congestion Reduction via Personalized Incentives

Research Product Type
Research Brief
Researchers at the University of Southern California developed a real-time, distributed algorithm for offering personalized incentives to individual drivers to make socially optimal routing decisions.

Cooperative eco-approach and departure (EAD) along signalized corridors

  • Principal Investigator Zhensong Wei
  • University of California, Riverside
The objectives of the research project are to: 1) Combine cooperativity and the EAD to reduce the negative effect of the increasing penetration rate and 2) conduct field tests in existing connected vehicle testbeds and extend the scope to corridors or networks and study the energy optimization approach for multiple intersections.
Project Status
Complete

Coordinated Traffic Flow Control in a Connected Environment

Research Product Type
Research Report
Some field studies have observed reductions in travel time by coordinating freeway ramps with adjacent arterial signals. To advance the investigation, the researchers propose an integrated traffic management strategy that involves variable speed limit, lane change, ramp metering for freeway traffic flow control, and a traffic-responsive signal control scheme for adjacent traffic light intersections.

Coordinated Traffic Flow Control in a Connected Environment

  • Principal Investigator Petros Ioannou, Ph.D.
  • University of Southern California
This project will investigate how connectivity provided by vehicle to infrastructure (V2I) and vehicle to vehicle (V2V) technologies can be used to develop traffic flow control systems that will enhance mobility and safety, and reduce queues at ramps with positive benefits to transportation efficiency and environment.
Project Status
Complete

Curbside Management Is Critical for Minimizing Emissions and Congestion

Research Product Type
Policy Brief
Researchers at the University of California, Davis conducted a review of practices in curbside management, and they conducted simulations to evaluate the impact of different management and design strategies on travel time, congestion, vehicle travel, and emissions in residential, commercial, and mixed-use neighborhoods in San Francisco.