This study investigates the statistical relationship between actual and estimated cost of road construction activities. It is based on a sample of 100 road construction projects awarded in the West Bank in Palestine over the years 2004 2008. Based on this data, regression models were developed. The investigated construction activities in this study are earthworks, base works, asphalt works and ...

Two noticeable events will speed-up the development of road construction robotics the recent availability on the market of adapted localization systems, the increasingly developing utilization of computer aided design in the study of road construction projects. Currently, no links do exist between the design studies and the construction work involving digital data which could be used for progra...

Many research works are going on to save or protect the environment from different hazardous or toxic gases, chemicals and other harmful effects. Different construction materials (both renewable & non-renewable) are used while constructing any structure, road, railway, tunnel, etc. But every Engineer must know the concept of sustainable development and the particular application of construction...

Geology is the base for highways and tunnels construction. With the fast development of national highway construction, highway tunnel construction project are more and more complex. The completeness and accuracy are essential for the planning, design and construction of projects, while the ground information is quite poor in systematic, reliable and timely aspects. Therefore, the development of...

A road construction 'flagger' is a construction crew member whose responsibility it is to safely co-ordinate vehicle traffic through road worksites. Flaggers are suffering injuries and fatalities at the worksite as a result of being struck by moving vehicles, both construction and commuter. These incidents are largely preventable with a more defensive flagger training programme. A cross-Canada ...

Prestressed construction technology has greatly developed in recent years, and related supporting facilities are constantly being improved. Therefore, prestressed been widely used roads bridges, which improved the efficiency of highway bridge overall quality. However, there still some problems application bridges. Only by controlling quality can effect bridges be guaranteed.

Stabilisation of natural pavement materials to make road pavements is widespread in South Africa, using cement and lime as cementitious binders. The rapid speed of the cementing reaction limits these to plant based construction. Some hydraulic binders have the potential to be developed for Labour Intensive Construction stabilisation technology because their slow hydration reaction allows time t...

Traditionally soil, stone aggregates, sand, bitumen, cement etc. are used for road construction. Natural materials being exhaustible in nature, its quantity is declining gradually. Also, cost of extracting good quality of natural material is increasing. Concerned about this, the scientists are looking for alternative materials for highway construction, and industrial waste product is one such c...

Road signs are crucial infrastructures for safe driving. For systematic management of road signs, construction of a road sign database and implementation of a road sign management system are essential for local governments. In this paper, we deal with automatic extraction of direction information from road sign imagery obtained by a mobile mapping system. Our approach starts with image pre-proc...