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With the growing awareness of sustainability and global climate change, state highway agencies are taking essential steps to reduce carbon emissions from highway infrastructure on a life cycle basis. While much is known regarding climate change mitigation and adaption strategies during highway operation, very little is understood about how climate change issues should be integrated into highway...

The performance and availability of modern 3D laser scanning systems has created a demand for a system that can survey many kilometres of highway very rapidly. Airborne laser scanning can offer this type of data but aircraft operations are expensive. Tunnels and bridges can be analysed from the bottom up. The StreetMapper mobile laser scanning system was developed initially to fill a demand for...

In recent years, private industry has been more involved in highway financing and operation. Many countries have started to apply new or improved strategies to promote the development of highway projects using sources other than the State. The most widely used concept is the scheme known as Build-Operate-Transfer (B-O-T). The major problem related to private highway participation is the high fi...

This paper reports the procedure for preparing engineering soil and drainage strip maps of proposed highways from aerial photographs. These maps are prepared from uncorrected aerial photographs at a scale of approximately three inches to the mile. An approximate scale is used, since ground control in conjunction with rectified airphotos would greatly increase the cost of preparing the strip map...

Computing optimal routes in road networks is one of the showpieces of realworld applications of algorithmics. In principle, we could use Dijkstra’s algorithm—the ‘classic’ solution from graph theory. But for large road networks this would be far too slow. Therefore, there is considerable interest in speedup techniques, which typically invest some time into a preprocessing step in order to gener...

ITE JOURNAL / DECEMBER 2004 INTRODUCTION AND SCOPE OF PAPER Planning for freight transportation in urban areas is not performed as commonly or as thoroughly as planning for passenger transportation, despite the fact that one of the seven factors for metropolitan planning specified in the federal legislation (the Transportation Equity Act for the 21st Century) mentions freight. Most planners and...

A major responsibility of highway engineers is to provide for the public a highway system capable of accommodating vehicle and pedestrian travel in a safe, efficient, and economic manner. In developing this highway system, the engineer is responsible for the planning, design, construction, operation, and maintenance of that system. In many instances the maintenance function is relegated to a mi...

This paper inTroduces a framework inTegraTing available elemenTs of a safeTy conscious design process in one concise, pracTice-orienTed algoriThm. implemenTaTion of The proposed framework should enhance The consisTency and depTh of safeTy consideraTions in TransporTaTion corridor planning and design projecTs. inTroducTion It is relatively common for safety issues to remain undetected at the tra...

it is a serious point to put sustainability into effect with the intention of healthy environment. health, according to the united nation development program (undp) is one of the important indicators which shows development level in each country. health is extremely meaningful and is associated with a great part of urban and regional planning policies as a main aspiration. it also contains many...