This paper presents a method for hypothesis verification in automatic road extraction based on the topology of road networks. The method includes the generation of topology of road networks, verification of hypothesized road segments and prediction of missing road segments. The topology of road networks is generated using small scale aerial images as they exhibit a global structure of road netw...

The road surveillance based on wireless sensor network nowadays has received great attention and its application has been extensively used in practice. In this application, when the invasion target moves from road entrance to system protection points in road network, the nodes in wireless sensor network could detect the target timely and give an alarm before the target reaches the protection po...

Qualitative representing and reasoning for road network moving objects are key works to put spatiotemporal reasoning into practices, but those are still open problems. We propose a new spatial algebra for road network moving objects based on Interval Algebra theory. Renz had developed an algebra DIA to represent one dimensional moving objects by giving time interval a spatial interpretation. Ex...

The efficiency and accuracy of road network data in the latest electronic maps cannot satisfy the current demands of their application's needs. The present paper proposes a new method to use floating car data to detect and update changes in the road network. An experiment was carried out with actual data to test and verify the feasibility of the novel method. With the highly accurate map-matchi...

The problems of finding best facility locations require complete and accurate road networks with the corresponding population data in a specific area. However the data obtained from road network databases usually do not fit in this usage. In this paper the authors propose a procedure of converting the road network database to a road graph which could be used for localization problems. Several c...

On the basis of travel time reliability, this paper puts forward the concepts of absolute reliability and relative reliability to better assess road network; simultaneously, regional traffic road network reliability formula is deducted according to series and parallel connection of link, OD pair and road network. Finally, a bi-level programming model is established to optimize road network. The...

Rule based traffic management is a methodology for dynamic traffic management that is a joint development of the different road authorities in the Netherlands. The approach tackles operational issues by disentangling problem detection, problem solution and conflict handling for each element in the road network. Each element in the road network follows the same generic rules and defers the traff...

This paper proposes a road network growing model with the consideration of population distribution and central business district (CBD) attraction. In the model, the relative neighborhood graph (RNG) is introduced as the connection mechanism to capture the characteristics of road network topology. The simulation experiment is set up to illustrate the effects of population distribution and CBD at...

Qualitative representing and reasoning for road network moving objects is an important problem in spatio-temporal reasoning, but it is till open. We propose a new spatial algebra for road network moving objects based on Interval Algebra Theory. Renz has developed an algebra DIA to represent one dimensional moving objects by giving time interval a spatial interpretation. We extend DIA to road ne...

Roads are conspicuous components of landscapes and play a substantial role in defining landscape pattern. Previous studies have demonstrated the link between roads and their effects on ecological processes and landscape patterns. Less understood is the relationship between landscape patterns imposed by the network in relation to road network configuration, spatial heterogeneity etc. Our hypothe...