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719
Spatial Partitioning of Large Urban Road Networks
"... The rapid global migration of people towards urban areas is multiplying the traffic volume on urban road networks. As a result these networks are rapidly growing in size, in which different sub-networks exhibit distinctive traffic flow patterns. In this paper, we propose a scalable framework for tra ..."
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for traffic congestion-based spatial partitioning of large urban road networks. It aims to identify different sub-networks or partitions that exhibit homogeneous traffic congestion patterns internally, but heterogenous to others externally. To this end, we develop a two-stage procedure within our framework
Segmentation of Urban Areas Using Road Networks ∗
"... Region-based analysis is fundamental and crucial in many geospatialrelated applications and research themes, such as trajectory analysis, human mobility study and urban planning. In this paper, we report on an image-processing-based approach to segment urban areas into regions by road networks. Here ..."
Abstract
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Cited by 4 (2 self)
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segmentation of urban spaces than the grid-based partition method. We show that through simple morphological operators, an urban road network can be efficiently segmented into regions. In addition, we present a case study in trajectory mining to demonstrate the usability of the proposed segmentation method
Growing urban roads. Networks and Spatial Economics, forthcoming
, 2002
"... We present a simple simulation of road growing dynamics that can generate global features as belt-ways and star patterns observed in urban transportation infrastructure. The road growing dynamics consist of two steps: Identifying the maximum transportation potential bewteen two locations within the ..."
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Cited by 7 (1 self)
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We present a simple simulation of road growing dynamics that can generate global features as belt-ways and star patterns observed in urban transportation infrastructure. The road growing dynamics consist of two steps: Identifying the maximum transportation potential bewteen two locations within
An Air Index for Spatial Query Processing in Road Networks
"... Abstract—Spatial queries such as range query and kNN query in road networks have received a growing number of attention in real life. Considering the large population of the users and the high overhead of network distance computation, it is extremely important to guarantee the efficiency and scalabi ..."
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Abstract—Spatial queries such as range query and kNN query in road networks have received a growing number of attention in real life. Considering the large population of the users and the high overhead of network distance computation, it is extremely important to guarantee the efficiency
Scaling Laws in the Spatial Structure of Urban Road Networks
, 2006
"... The urban road networks of the 20 largest German cities have been analysed, based on a detailed database providing the geographical positions as well as the traveltimes for network sizes up to 37,000 nodes and 87,000 links. As the human driver recognises travel-times rather than distances, faster ro ..."
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The urban road networks of the 20 largest German cities have been analysed, based on a detailed database providing the geographical positions as well as the traveltimes for network sizes up to 37,000 nodes and 87,000 links. As the human driver recognises travel-times rather than distances, faster
Scalable Network Distance Browsing in Spatial Databases
, 2008
"... An algorithm is presented for finding the k nearest neighbors in a spatial network in a best-first manner using network distance. The algorithm is based on precomputing the shortest paths between all possible vertices in the network and then making use of an encoding that takes advantage of the fact ..."
Dimsumnet: New directions in wireless networking using coordinated dynamic spectrum access
- in IEEE WoWMoM05
, 2005
"... Recent advances in Software Defined Radio (SDR), wide band spectrum sensing, and environment aware real-time spectrum allocation [13, 10, 4] show promise of enabling the new paradigm of Dynamic Spectrum Access (DSA) networks. These networks aim to provide dynamic access to large swaths of spectrum w ..."
Abstract
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Cited by 129 (2 self)
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Recent advances in Software Defined Radio (SDR), wide band spectrum sensing, and environment aware real-time spectrum allocation [13, 10, 4] show promise of enabling the new paradigm of Dynamic Spectrum Access (DSA) networks. These networks aim to provide dynamic access to large swaths of spectrum
Distance indexing on road networks
- In PVLDB
, 2006
"... The processing of kNN and continuous kNN queries on spa-tial network databases (SNDB) has been intensively studied recently. However, there is a lack of systematic study on the computation of network distances, which is the most funda-mental difference between a road network and a Euclidean space. S ..."
Abstract
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Cited by 29 (0 self)
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The processing of kNN and continuous kNN queries on spa-tial network databases (SNDB) has been intensively studied recently. However, there is a lack of systematic study on the computation of network distances, which is the most funda-mental difference between a road network and a Euclidean space
Measuring the Structure of Road Networks
- GEOGRAPHICAL ANALYSIS
, 2006
"... Spatial networks display both topologic and geometric variations in their structure. This study investigates the measurement of road network structure. Existing measures of heterogeneity, connectivity, accessibility, and interconnectivity are reviewed and three supplemental measures are proposed, in ..."
Abstract
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Cited by 24 (11 self)
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could be used to describe the structural attributes of complicated road networks quantitatively, to compare different network structures, and to explore the structural evolution of networks in the spatial and temporal context. These measures can find their applications in urban planning
Urban Road Traffic Accident
"... Abstract: We develop a GIS database to store urban traffic accident data in digital style, and analyze these data in terms of their attribute and spatial characteristics to exploit the reasons of accidents and rank urban area with dangerous degrees. We establish a road network in MapInfo for a sampl ..."
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Abstract: We develop a GIS database to store urban traffic accident data in digital style, and analyze these data in terms of their attribute and spatial characteristics to exploit the reasons of accidents and rank urban area with dangerous degrees. We establish a road network in MapInfo for a
Results 1 - 10
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719
