bus rapid transit is an innovative, high capacity, lower cost public transit solution in metropolitan cities. idea is to dedicate lanes for quick and efficient transport of passengers to their destinations. in the present investigation the environmental impact assessment of bus rapid transit  in tehran metropolitan city is brought out. for this purpose bus rapid transit lane no. 10 is investiga...

Some variational models have been recently introduced to the aim of modeling ramified structures, such as trees, rivers and so on. We introduce a general scheme in which the notion of transport distance is introduced starting from a general transport cost functional, through relaxation arguments. Then we apply this general framework to the irrigation cost, which is a particular cost functional ...

In this paper, we show that cost variation for long-distance travel is often substantial and discuss why it likely to increase further in the future. Thus, current practice large-scale models, set one single a combination of origin, destination, mode, purpose, has potential improvement. To tackle issue, develop ways accounting model estimation forecasting. For public transport, two approaches a...

This study analyzed the performance of cabbage marketing in Abia State, Nigeria. Specifically the study sought to: describe socio-economic characteristics of cabbage marketers; identify marketing channels of cabbage; determine marketing cost components of cabbage marketers; determine marketing margins, market share and marketing efficiency of cabbage marketers; and determine socio-economic fact...

The problem of designing a set of routes with minimum cost to serve a collection of customers with a fleet of vehicles is a fundamental challenge when the number of customers to be dropped or picked up is not known during the planning horizon. The purpose of this paper is to develop a vehicle routing Problem (VRP) model that addresses stochastic simultaneous pickup and delivery in the urban pub...

Risk factors are generally defined and assigned to road networks, as constant measures in hazmat routing problems. In fact, they may be dynamic variables depending on traffic volume, weather and road condition, and drivers' behavior. In this research work, risk factors are defined as dynamic variables using the concept of chaos theory. The largest Lyapunov exponent is utilized to determine the ...

in this work, a molecular dynamics simulation of the transport of water - methanol mixture through the single wall carbon nanotube (swcnt) is reported. methanol and water are selected as fluid molecules since water represents a strongly polar molecule while methanol is as an intermediate between polar and strongly polar molecules. some physical properties of the methanol-water mixture such as r...

In this study a directional output distance function which incorporates both desirable and undesirable output is employed to investigate the impact of privatization experienced by the Taiwan Motor Transport Company (TMTC). For the first time, we measure efficiency changes before and after privatization while treating transport risk as a joint but undesirable output. The empirical results demons...