Results 281 to 290 of about 8,928,935 (332)
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Alternative routes in road networks
ACM Journal of Experimental Algorithmics, 2010We study the problem of finding good alternative routes in road networks. We look for routes that are substantially different from the shortest path, have small stretch, and are locally optimal. We formally define the problem of finding alternative routes with a single via vertex, develop efficient algorithms for it, and evaluate them experimentally ...
Ittai Abraham +3 more
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Time-Dependent Hop Labeling on Road Network
IEEE International Conference on Data Engineering, 2019Route scheduling on time-dependent road network is slow due to its problem complexity of Ω(T(|V|log |V|+|E|)), where T is the size of the result's time-dependent function, |V| is the number of vertices and |E| is the number of edges. To make things worse,
Lei Li, Sibo Wang, Xiaofang Zhou
semanticscholar +1 more source
Transportation Engineering Journal of ASCE, 1978
Minimization of the total transportation cost within a network, connecting a given point constellation with known transportation demands by determination of the optimal network configuration and type of construction of individual links is the objective of this paper.
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Minimization of the total transportation cost within a network, connecting a given point constellation with known transportation demands by determination of the optimal network configuration and type of construction of individual links is the objective of this paper.
openaire +1 more source
Empirical assessment of road network resilience in natural hazards using crowdsourced traffic data
International Journal of Geographical Information Science, 2019Climate change and natural hazards pose great threats to road transport systems which are ‘lifelines’ of human society. However, there is generally a lack of empirical data and approaches for assessing resilience of road networks in real hazard events ...
Y. Qiang, Jinwen Xu
semanticscholar +1 more source
Road network generalization considering traffic flow patterns
International Journal of Geographical Information Science, 2019As one of the major concerns in cartographic generalization, road network generalization aims at maintaining the patterns of road networks across map scales.
Wenhao Yu +5 more
semanticscholar +1 more source
ACM Transactions on Knowledge Discovery from Data, 2019
A road network is a critical aspect of both urban planning and route recommendation. This article proposes an efficient approach to build a fine-grained road network based on sparsely sampled private car trajectory data under complex urban environment ...
Yourong Huang +5 more
semanticscholar +1 more source
A road network is a critical aspect of both urban planning and route recommendation. This article proposes an efficient approach to build a fine-grained road network based on sparsely sampled private car trajectory data under complex urban environment ...
Yourong Huang +5 more
semanticscholar +1 more source
Road safety performance indicators for the interurban road network
Accident Analysis & Prevention, 2013Various road safety performance indicators (SPIs) have been proposed for different road safety research areas, mainly as regards driver behaviour (e.g. seat belt use, alcohol, drugs, etc.) and vehicles (e.g. passive safety); however, no SPIs for the road network and design have been developed. The objective of this research is the development of an SPI
George, Yannis +6 more
openaire +2 more sources
2008
Let $\mathcal{N}$ and $\mathcal{M}$ be two road networks represented in vector form and covering rectangular areas Rand R?, respectively, not necessarily parallel to each other, but with R? ? R. We assume that $\mathcal{N}$ and $\mathcal{M}$ use different coordinate systems at (possibly) different, but known scales.
Yago Diez +2 more
openaire +1 more source
Let $\mathcal{N}$ and $\mathcal{M}$ be two road networks represented in vector form and covering rectangular areas Rand R?, respectively, not necessarily parallel to each other, but with R? ? R. We assume that $\mathcal{N}$ and $\mathcal{M}$ use different coordinate systems at (possibly) different, but known scales.
Yago Diez +2 more
openaire +1 more source