Title
Building Accurate 3D Spatial Networks to Enable Next Generation Intelligent Transportation Systems
Abstract
The use of accurate 3D spatial network models can enable substantial improvements in vehicle routing. Notably, such models enable eco-routing, which reduces the environmental impact of transportation. We propose a novel filtering and lifting framework that augments a standard 2D spatial network model with elevation information extracted from massive aerial laser scan data and thus yields an accurate 3D model. We present a filtering technique that is capable of pruning irrelevant laser scan points in a single pass, but assumes that the 2D network fits in internal memory and that the points are appropriately sorted. We also provide an external-memory filtering technique that makes no such assumptions. During lifting, a triangulated irregular network (TIN) surface is constructed from the remaining points. The 2D network is projected onto the TIN, and a 3D network is constructed by means of interpolation. We report on a large-scale empirical study that offers insight into the accuracy, efficiency, and scalability properties of the framework.
Year
DOI
Venue
2013
10.1109/MDM.2013.24
MDM
Keywords
Field
DocType
automated highways,ecology,filtering theory,geographic information systems,geophysical image processing,interpolation,remote sensing,solid modelling,vehicle routing,3D spatial network model,TIN surface,aerial laser scan data,eco-routing,elevation information,environmental impact,external-memory filtering technique,internal memory,interpolation,laser scan point,lifting framework,next generation intelligent transportation system,scalability properties,triangulated irregular network,vehicle routing,3D spatial network,LiDAR,TIN,eco-routing
Geographic information system,Spatial network,Computer science,Interpolation,Computer network,Filter (signal processing),Solid modeling,Intelligent transportation system,Triangulated irregular network,Scalability
Conference
Volume
Citations 
PageRank 
1
30
1.27
References 
Authors
6
3
Name
Order
Citations
PageRank
Manohar Kaul118513.76
Bin Yang270634.93
Christian S. Jensen3106511129.45