نتایج جستجو برای: transportation modes
تعداد نتایج: 165648 فیلتر نتایج به سال:
With the widespread advent of the smart phones equipping with Global Positioning System (GPS), a huge volume of users’ trajectory data was generated. To facilitate urban management and present appropriate services to users, studying these data was raised as a widespread research filed and has been developing since then. In this research, the transportation mode of users’ trajectories was identi...
Existing works on moving objects mainly focus on a single environment such as free space and road network, and do not investigate the complete trip for humans who can pass several environments, e.g., road network, pavement areas, indoor. In this paper, we consider multiple environments and study moving objects with different transportation modes, also called generic moving objects. We aim to an...
Introduction During this century several transportation modes, including transit, personal automobiles, and airplanes, have competed for market share. Despite this competition, the personal vehicle has become the dominant form of mobility in many countries throughout Europe and North America. In turn, public transit has found it increasingly difficult to attract and retain passengers. This pape...
Multi-modal logistics chains are those transportation processes in which different modes of transportation are involved for the delivery of goods. These modes are adopted in consecutive legs, which have to be synchronized. An example scenario is the delivery of goods from a production center in New York, USA, to a plant in Utrecht, the Netherlands. The transportation chain consists of two legs:...
This paper examines the flow synchronization problem between a manufacturing location and multiple destinations. Multiple products can be shipped from the manufacturing location to different locations via multiple transportation modes. These transportation modes may have different transportation lead times. The transportation costs structure of the different transportation modes offer economies...
The motivation to improve intermodal connectivity at airports results from a growing interest in reducing the volume of highway traffic generated by airport access and egress trips and facilitating the ability of airport travelers to use high-occupancy modes. However, there is a lack of standardized analysis tools for evaluating the viability and impact of different strategies to improve interm...
This paper describes a declarative approach to modeling a multimodal transportation network (MTN) composed of multiple connecting transport modes, such as bus, tram, light rail, subway and commuter rail, where within each mode, service is provided on separate lines or routes. The considered model of a network of multimodal transportation processes (MTPN) provides a framework to address the need...
Taking into consideration both shipping and pipeline transport, this paper first analysed the risk factors for different modes of crude oil import transportation. Then, based on the minimum of both transportation cost and overall risk, a multi-objective programming model was established to optimize the transportation network of crude oil import, and the genetic algorithm and ant colony algorith...
Intermodal freight transportation is concerned with shipping of commodities from their origin to destination using combinations of transport modes. Traditional logistics models have concentrated on minimizing transportation costs by appropriately determining the service network and the transportation routing. This paper considers an intermodal transportation problem with an explicit considerati...
recovery of used products is receiving much attention recently due to growing environmental concerns.in this paper, we address the carbon footprint basedon problem arising in closed-loop supply chain where returned products are collected from customers. these returned products can either be disposed or be remanufactured to be sold as new ones again. here, we formulate a comprehensive closed-loo...
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