Most of the existing traffic control strategies implemented in many countries in the world tend to aim only at improving the efficiency of traffic output. However, decreased the delays and safer traffic are also important outcomes of traffic control. In this study, a dynamic algorithm for variable speed-limit control at toll booth zones is presented that can take full advantage of its dynamic f...

1 Introduction U.S. highways are experiencing a " perfect storm: " traffic congestion and delays are imposing ever greater costs on motorists and shippers; poorly maintained roads and bridges continue to damage vehicles and pose threats to travelers' safety; and for the first time since the Highway Trust Fund was created in 1956, the portion that finances federal highway expenditures is running...

Based on previous studies of a highway reservation system, this paper proposed an auction-based implementation, in which the users can bid for the right to use a route during a certain period of time. This paper models the auction system with MATSim using an agent-based simulation technique. The agents adopt their own bidding logic in the auction, and the price converges after around 130 iterat...

Research regarding the magnitude of ultrafine particle levels at highway toll stations is limited. This study measured ambient concentrations of ultrafine particles at a highway toll station from October 30 to November 1 and November 5 to November 6, 2008. A scanning mobility particle sizer was used to measure ultrafine particle concentrations at a ticket/cash tollbooth. Levels of hourly averag...

We investigate the traffic flows of the Korean highway system, which contains both public and private transportation information. We find that the traffic flow Tij between city i and j forms a gravity model, the metaphor of physical gravity as described in Newton’s law of gravity, PiPj/r 2 ij , where Pi represents the population of city i and rij the distance between cities i and j. It is also ...