Free flow speed is used as a parameter in transportation planning and capacity analysis models, as well as speedflow diagrams. Many of these models suggest estimating free flow speed according to measurements from similar highways, which is not a practical method for use in B&H. This paper first discusses problems with using these methodologies in conditions prevailing in B&H and then presents ...

Vegetation control has become a vital part of highway maintenance. Fast-moving vehicles and a greater appreciation of safety on the part of the public require good visibility along roadsides. This applies not only to highways maintained by the state but also to county and township roads where intersections frequently become hazardous due to brush and vine growth. Noxious weeds and brush growing...

New wind-energy facilities and their associated power transmission lines and roads are being constructed at a rapid pace in the Great Plains of North America. Nevertheless, little is known about the possible negative effects these anthropogenic features might have on prairie birds, one of the most threatened groups in North America. We examined radiotelemetry tracking locations of Lesser Prairi...

This paper presents a formal verification of a safety message dissemination protocol used in vehicular adhoc networks. It is proposed to use Road Side Units to broadcast road hazard information to vehicles travelling on highways. Quick dissemination of road hazard information, like road blocks, slippery roads and other obstacles can help to prevent road accidents and improve passenger safety. F...

There are more and more systems emerging making use of measurements from a forward looking radar and a forward looking camera. It is by now well known how to exploit this data in order to compute estimates of the road geometry, tracking leading vehicles, etc. However, there is valuable information present in the radar concerning stationary objects, that is typically not used. The present work s...

The goal of this study is to detect the main road network in high resolution, panchromatic SPOT satellite images. The applications of automatic road detection have attracted considerable interest in this problem [1–4], but no present system is completely satisfactory from the point of view of detection time, image size and required human intervention. We describe an automatic procedure for road...

Two-lane highways refer to roadways consisting of two lanes in the cross section, one for each direction travel. Occasionally, passing may be added or sides roadway extending section three four at those locations. In this entry, two-lane strictly roads rural areas meeting previous definition and do not include urban suburban streets.