The Tokyo Metropolitan Police Department decreased the congestion length by 20% when it enhanced the traffic signal control functionality of the police traffic control centre during an upgrade in 1995. However the total congestion length-hours in the Tokyo metropolitan area on weekdays has reached 6,400km-hours per day in 2004. The resultant economic losses are expected to be 51.8 billion yen per year and the CO2 emitted by the vehicles stuck in the traffic is estimated to be 360,000 ton per year, causing a setback to economic activities and environmental integrity. This paper is about the analysis of traffic congestion in the Tokyo metropolitan area and the methods to improve traffic situation such as simulation. For the covering abstract see ITRD E134653.
Abstract