منابع مشابه
Animal transportation networks.
Many group-living animals construct transportation networks of trails, galleries and burrows by modifying the environment to facilitate faster, safer or more efficient movement. Animal transportation networks can have direct influences on the fitness of individuals, whereas the shape and structure of transportation networks can influence community dynamics by facilitating contacts between diffe...
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This deliverable consists of three main parts. The first part is a comprehensive survey on standardisation efforts for geographic information. The second part contains a description of the Geographic Data Files (GDF) standard. This is an ISO specification of how to store geographic information for intelligent transport systems. The structures in GDF, although primarily developed for storing dat...
متن کاملScaling in Transportation Networks
Subway systems span most large cities, and railway networks most countries in the world. These networks are fundamental in the development of countries and their cities, and it is therefore crucial to understand their formation and evolution. However, if the topological properties of these networks are fairly well understood, how they relate to population and socio-economical properties remains...
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We survey recent advances in algorithms for route planning in transportation networks. For road networks, we show that one can compute driving directions in milliseconds or less even at continental scale. A variety of techniques provide different trade-offs between preprocessing effort, space requirements, and query time. Some algorithms can answer queries in a fraction of a microsecond, while ...
متن کاملPredisaster Preparation of Transportation Networks
We develop a new approach for a pre-disaster planning problem which consists in computing an optimal investment plan to strengthen a transportation network, given that a future disaster probabilistically destroys links in the network. We show how the problem can be formulated as a non-linear integer program and devise an AI algorithm to solve it. In particular, we introduce a new type of extrem...
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ژورنال
عنوان ژورنال: Journal of The Royal Society Interface
سال: 2014
ISSN: 1742-5689,1742-5662
DOI: 10.1098/rsif.2014.0334