This paper examines the determinants of truck accidents in the United States using a time series data set covering the period 1970–2001. Along with other factors, the effect of the Motor Carrier Act of 1980, which deregulated the trucking industry, is examined for its impact on truck accidents. In addition, the model accounts for the effect railroad freight mileage has on truck accidents. Empir...

The new Qinghai-Tibet railroad will run across the world’s highest permafrost region for 632 km, of which about half is high-temperature and ice-rich permafrost. Therefore, an important and challenging engineering problem is the possible instability and sensitivity of permafrost. Chinese permafrost scientists are now making efforts to solve the problem by carrying out numerous field and laborat...

This paper describes a laboratory equipped for the teaching of realtime systems. The laboratory has been built around a Digital Model Railroad Platform and it allows the development of different control applications for educational purposes. Because of the platform is a limited resource and the students can not test their programs simultaneously, a railroad platform simulator has been developed...

We conducted a carcass census of Mongolian gazelles (Procapra gutturosa) along the Trans-Mongolian railroad in June 2005. We counted 241 gazelles that had died within the previous 12 months. Carcass numbers were greater on the southwestern side in the northern 3 zones, but we found carcasses only on the northeastern side in the southernmost zone. It suggests that impact of the railroad was stro...

In this study, the factors influencing choice of type urban railroad transportation in metropolitan areas Korea were analyzed. As populations are expanding, importance rail transportation, which has a high travel reliability terms time, increased, and various types systems have emerged accordingly. This study was focused on behavior travelers local express trains that use same track differ only...