607 External costs of traffic congestion in Iran Urban freeways

Estimating Urban Road Congestion Costs

Economists wishing to analyse road congestion and road pricing have usually relied on linkbased speed-flow relationships. These may provide a poor description of urban congestion, which mainly arises from delays at intersections. Using the simulation model SATURN, we investigate the second-best proportional traffic reduction and find that linear speed-flow relations describe network flows quite...

The Economic Costs of Road Traffic Congestion

Truck-involved Crashes and Traffic Levels on Urban Freeways

Using two years of crash and average annual daily traffic data we examine the locations and conditions linked to truck-involved crashes (accidents). A binomial logit model is used to describe how the probability that a crash involves a truck is a function of the percentage of annual average daily traffic that is accounted for by trucks, time of day, day of the week, weather conditions, mix of t...

A stochastic approach to traffic congestion costs

The real world is a complex dynamic and stochastic environment. This is especially true for the traffic moving daily on our roads. As such, accurate modeling that correctly considers the real-world dynamics and the inherent stochasticity is very important, especially if government will base its road tax decisions on the outcomes of these models. The contemporary traffic prices, if any, however ...

Measuring Urban Traffic Congestion – a Review

Tra’c congestion has been one of major issues that most metropolises are facing. It is believed that identi cation of congestion is the rst step for selecting appropriate mitigation measures. Congestion both in perception and in reality impacts the movement of people. Tra’c congestion wastes time, energy and causes pollution. ere are broadly two factors, which e±ect the congestion; (a) micro-le...