منابع مشابه
Optimal Forest Road Density Based on Skidding and Road Construction Costs in Iranian Caspian Forests
Information on the productivity, costs and applications of the logging system is a key component in the evaluation of management plans for the rehabilitation and utilization of Caspian forests. Skidding and road construction costs are expensive forest operations. Determining the optimum forest road network density is one of the most important factors in sustainable forest management. Logging me...
متن کاملoptimal forest road density based on skidding and road construction costs in iranian caspian forests
information on the productivity, costs and applications of the logging system is a key component in the evaluation of management plans for the rehabilitation and utilization of caspian forests. skidding and road construction costs are expensive forest operations. determining the optimum forest road network density is one of the most important factors in sustainable forest management. logging me...
متن کاملEstimating Urban Road Congestion Costs
Economists wishing to analyse road congestion and road pricing have usually relied on linkbased speed-flow relationships. These may provide a poor description of urban congestion, which mainly arises from delays at intersections. Using the simulation model SATURN, we investigate the second-best proportional traffic reduction and find that linear speed-flow relations describe network flows quite...
متن کاملMinimizing Road Construction plus Forwarding Costs under a Maximum Soil Disturbance Constraint
ABSTRACT: A model is developed to minimize the sum of road construction plus forwarding costs with the constraint that rut depth caused by the forwarder cannot exceed a maximum depth during the anticipated season of operation. Road spacing, forwarder trail spacing, and forwarder capacity are used as decision variables in developing the transportation plan. The total cost was minimized using the...
متن کاملJ Control of Construction Costs during Construction
Title of Thesis: Control of Construction Costs During Construction David H. Foo, Master of Science in Management Engineering, 1981 Thesis directed by: Dr. John M. Ciborski, Special Lecturer The construction of a major project requires a vast amount of time, money, material and human resources. Proper coordination of these elements into an array of activities is crutial to the success of the pro...
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ژورنال
عنوان ژورنال: Scientific Journal of Silesian University of Technology. Series Transport
سال: 2017
ISSN: 0209-3324,2450-1549
DOI: 10.20858/sjsutst.2017.96.19