Problem. Effective organization of the road construction and repair process is impossible without an appropriate selection machines, in particular trucks. However, among a large number trucks, differing various parameters, it difficult to make choice scientifically based approach, taking into account totality their characteristics. It was found that trucks are characterized by set while values ...

road construction is one of the effective factors for ecological changes which affects diversity and species composition in forest roads edges. this research was performed in kheirud forest to evaluate herbaceous diversity and tree regeneration establishment in different distances from road edge. for this purpose, we sampled herbaceous and tree species regeneration in 0,5,10,25, 50 and 100 m di...

in the present research land use changes modeling in the urmia city is considered in order to detect changes in agricultural lands. in this regard, landsat satellite images were used and then the object base processing satellite images was performed by applying the process segmentation and in the next stage, the optimization of scale segmentation and image analysis to its constituent elements, ...

An optimal scheme of road paving maintenance was investigated by examining the environmental loading and cost considerations of pavement operations over a 30-year life cycle. Results indicated that the application of recycled materials in pavement construction and repair reduced the effects of environmental loading over the life cycle by approximately 40%. Furthermore, it was observed that envi...

This paper presents a new action-based shape model concept for road horizontal shape recognition using monocular color image obtained by vehicle-mounted camera. It classifies the road horizontal shape into straight, curve, curve-in and curve-out four models in order to obtain the simple road shape description relating to the vehicle control actions directly. Contrary to other road shape recogni...

operation kheibarin which the war engineering supporting of jihad played an important role is one of the major military operations in the eight-year war implemented in hawr al-azimarea in the winter of 1981 with the aim of achieving the basra-to-al-amara road. building a13-km floating bridge named kheibar as thewaterrearsof the units on the forward edge of battle area, construction a 14-km road...

Existing linear scheduling methods for earthwork activities lack accurate scheduling locations in road construction projects. Project planners and construction managers largely depend on subjective decisions for the allocation of resources at correct locations. This has caused uncertainties in planning and scheduling, and consequently delays and cost overruns of projects. Accurate information o...