An Automated Road Maintenance Machine (ARMM) for automatically sealing pavement cracks has been developed by the University of Texas at Austin. Automating pavement crack sealing can improve safety, productivity and quality and reduce road user costs as well. Recent initial field trials of the full scale crack sealer have indicated that automated pavement crack sealing is now technically , econo...

This study investigates the empirical presence of a theoretical transportation paradox, defined as the "Online Information Paradox" (OIP). The paradox suggests that, for certain road networks, the provision of online information deteriorate travel conditions for all users of that network relative to the situation where no online information is provided to users. The analytical presence of the p...

It’s obvious that road safety is causing large problems and costs in Iran with an enormous impact on the well-being of people, economy and productivity. The yearly number of fatalities and injuries is still unchanged. Motor vehicle injuries lead the list of injury deaths at the all ages during childhood and adolescence, even in children under 1 yrs of age. Understanding the actual of chil...

Congestion in urban arterial road networks increases steadily. For long-range road investment planning it is essential to be able to evaluate the impacts of this congestion on road user costs and on the environment. The current method is to use transport planning models with static traffic assignment. This method, however, may significantly underestimate the impacts of congestion because of the...

Collisions between distinct road users (e.g. drivers and motorcyclists) make a substantial contribution to the road trauma burden. Although evidence suggests distinct road users interpret the same road situations differently, it is not clear how road users’ situation awareness differs, nor is it clear which differences might lead to conflicts. This article presents the findings from an onroad s...