This paper presents a version of the monocentric city model that incorporates heterogeneous commuting speeds by introducing radial commuting highways. This model implies that metropolitan area population spreads out along new highways, which are positively valued by residents. Simulations of conservative specifications of the model imply that each additional highway ray causes about a 10 percen...

Slab-on-pile SOP viaducts have been constructed on several highways and railways in Indonesia, but there are certain doubts about some practical structural seismic design concepts. Therefore, this study aims to investigate the performance of a single spun pile column for viaduct using nonlinear analysis. The essential variables used include effect top reinforced concrete infill treatment, soil-...

There are very similar features between Chinese Railways and European Railways in terms of train operation mode and train control. ETCS (European Train Control System), supported by the European Union and the European Industrials, has been finalized as the technical standard of train control systems in Europe after more than ten years effort. There is more than 71,500 kilometers of railway oper...

Road and railway networks are pervasive elements of all environments, which have expanded intensively over the last century in all European countries. These transportation infrastructures have major impacts on the surrounding landscape, representing a threat to biodiversity. Roadsides and railways may function as corridors for dispersal of alien species in fragmented landscapes. However, only f...

We consider the problem of computing all farthest neighbors (and the diameter) of a given set of n points in the presence of highways and obstacles in the plane. When traveling on the plane, travelers may use highways for faster movement and must avoid all obstacles. We present an efficient solution to this problem based on knowledge from earlier research on shortest path computation. Our algor...

Empirical data and statistical models are employed to predict where new highway routes are most likely to be located. The land use, population distribution, and highway network for the Twin Cities’ Metro Area from 1958 to 1990 are used. Binary logit models estimate the likelihood a particular cell will see the construction of divided highways and secondary highways. The results show that the ar...

This study evaluates the impact of the 65-mph speed limit on traffic safety. Using data for the years 1981 to 1995 for all 50 states, a pooled time series analysis is conducted. Separate models are estimated for state fatality rates on four categories of roads: rural interstate highways, rural noninterstate roads, all roads except for rural interstate highways, and all roads. It is reported tha...

Progress of construction technology Japan has a relatively small proportion of lowland, consisting mainly of alluvial coastal plains. Railway construction started in the early Meiji Era (1868–1912) and since the construction technology was still immature, the first lines were built in level coastal areas. The rails were laid mostly on earth structures such as embankments and cuttings. Many rail...