Building Topological Structure of the Post-Disaster Road Network Based MapX

2014 ◽  
Vol 505-506 ◽  
pp. 995-998 ◽  
Author(s):  
Xu Ri Yin
Keyword(s):  
Shortest Path ◽  
Spatial Data ◽  
Road Network ◽  
Road Traffic ◽  
Weak Link ◽  
Application Systems ◽  
Control Product ◽  
Shortest Path Analysis ◽  
Map Analysis ◽  
Post Disaster

Road traffic is the most widely used for transport security, which have the significant disaster vulnerability. It often becomes the weak link when the evacuation and rescue. MapX is an ActiveX control product with powerful map analysis functions offered by MapInfo Company. Because it does not support the topology of spatial data, the shortest path analysis has become a hot potato for users to develop application systems. In this paper, several key technologies to establish topology structure of road network based on MapX are discussed. On the base, an algorithm for finding the shortest path in post-disaster road network is presented, and experimental results show that the proposed algorithm is more practical and effective. At last, a brief conclusion as well as the expectation for the further study is made.

Building of Road Network Topology and the Shortest Path Analysis Based on MapX

2013 ◽  
Vol 380-384 ◽  
pp. 2573-2576 ◽  
Author(s):  
Qing Ge Zhang ◽  
Lu Wei Zhang ◽  
Xu Ri Yin
Keyword(s):  
Path Analysis ◽  
Shortest Path ◽  
Spatial Data ◽  
Road Network ◽  
Experimental Result ◽  
The Road ◽  
Application Systems ◽  
Control Product ◽  
Shortest Path Analysis ◽  
Map Analysis

MapX is an ActiveX control product with powerful map analysis functions offered by Maplnfo Company.Because It does not support the topology of spatial data, the shortest path analysis has become a hot potato for MapX users to develop application systems. In this paper, several key technologies to establish the road topology structure based on MapX are discussed. On the base, an algorithm for finding the shortest path in road network is presented, and experimental result shows that the proposed algorithm is more practical and effective. At last, a brief conclusion as well as the expectation for the further study is made.

An Improved Ant Colony Algorithm for the Shortest Path in City’s Road Network

2011 ◽  
Vol 121-126 ◽  
pp. 1296-1300 ◽  
Author(s):  
Jun Bi ◽  
Jie Zhang ◽  
Wen Le Xu
Keyword(s):  
Shortest Path ◽  
Road Network ◽  
Ant Colony Algorithm ◽  
Road Traffic ◽  
Global Optimum ◽  
Ant Colony ◽  
Selection Strategy ◽  
Ant Colony System ◽  
Local Optimum ◽  
Information Quantity

The shortest path between the start node and end node plays an important role in city’s road traffic network analysis system. The basic ant colony system algorithm which is a novel simulated evolutionary algorithm is studied to solve the shortest path problem. But the basic ant colony system algorithm is easy to run into the local optimum solution for shortest path. In order to solve the problem, the improved ant colony system algorithm is proposed. The improvement methods for selection strategy, local search, and information quantity modification of basic ant colony system are discussed in detail. The experiments are done in Beijing road network in China. The results of experiments show that comparing with the basic ant colony algorithm, the improved algorithm can easily converge at the global optimum for the shortest path.

scholarly journals Analisis Spasial untuk Lokasi Relokasi Masyarakat Terdampak Tsunami Selat Banten Tahun 2018

2019 ◽  
Vol 5 (1) ◽  
pp. 112
Author(s):  
Westi Utami ◽  
Yuli Ardianto Wibowo ◽  
Muhamad Afiq
Keyword(s):  
Spatial Pattern ◽  
Spatial Data ◽  
Road Network ◽  
Class 1 ◽  
Prone Area ◽  
Vulnerability Map ◽  
Hazard Level ◽  
Suitable Area ◽  
Center Map ◽  
Post Disaster

Abstract: Relocation is an alternative policy in post-disaster management, especially in disaster-prone area. This study was conducted to map alternative locations of relocation of affected people in 2018 Banten Strait tsunami in Mekarsari Village. The method used is an analysis of superimposed spatial data using aerial photograph, disaster hazard level map, spatial pattern map, road network, economic center map and Geo-KKP data. Analysis of vulnerability map and spatial pattern map was done through scoring. Accessibility analysis was conducted using road network map and economic center was carried out using buffer analysis. The results show that in Mekarsari Village, Banten, alternatives locations of relocation were obtained in 3 classes: class 1 for 173,013 Ha; class 2 for 115,180 Ha and class 3 for 269,806 Ha. This study is useful to determine suitable area for relocation quickly, appropriately, effectively and in accordance with Spatial Planning.Key Word: Victim population, Spatial Analysis, Post-Disaster Relocation, Tsunami.Intisari: Relokasi menjadi salah satu alternatif kebijakan yang dapat dilakukan pasca bencana, untuk daerah yang memiliki ancaman bencana tinggi. Kajian ini dilakukan untuk memetakan alternatif lokasi relokasi bagi masyarakat terdampak tsunami d Selat Banten tahun 2018 dengan lokasi di Desa Mekarsari. Metode yang dilakukan menggunakan analisis superimposed data spasial yakni foto udara, peta tingkat kerawanan bencana, peta pola ruang, peta jaringan jalan, peta pusat perekonomian dan data Geo-KKP. Analisis terhadap peta tingkat kerawanan bencana dan peta pola ruang dilakukan melalui skoring. Analisis terkait aksesibilitas dilakukan menggunakan peta jaringan jalan dan pusat perekonomian dilakukan melalui sistem buffer. Hasil penelitian menunjukkan bahwa di Desa Mekarsari, Banten diperoleh alternatif relokasi relokasi dengan 3 klasifikasi kelas yaitu relokasi kelas 1 seluas 173.013 Ha; lokasi relokasi kelas 2 seluas 115.180 Ha dan lokasi relokasi kelas 3 seluas 269.806 Ha. Kajian yang dilakukan menjadi salah satu metode untuk menetukan relokasi secara cepat dan tepat, dan efektif karena lokasi yang dipilih sesuai dengan RTRW.Kata Kunci: Masyarakat Terdampak, Analisis Spasial, Relokasi Pasca Bencana, Tsunami.

scholarly journals Utilizing MapReduce to Improve Probe-Car Track Data Mining

2018 ◽  
Vol 7 (7) ◽  
pp. 287 ◽  
Author(s):  
Li Zheng ◽  
Meng Sun ◽  
Yuejun Luo ◽  
Xiangbo Song ◽  
Chaowei Yang ◽  
...  
Keyword(s):  
Data Mining ◽  
Traffic Safety ◽  
Spatial Data ◽  
Road Traffic ◽  
Spatial Data Mining ◽  
Tracking Data ◽  
Mining System ◽  
Computational Performance ◽  
True Path ◽  
Probe Car

With the rapidly increasing popularization of the automobile, challenges and greater demands have come to the fore, including traffic congestion, energy crises, traffic safety, and environmental pollution. To address these challenges and demands, enhanced data support and advanced data collection methods are crucial and highly in need. A probe-car serves as an important and effective way to obtain real-time urban road traffic status in the international Intelligent Transportation System (ITS), and probe-car technology provides the corresponding solution through advanced navigation data, offering more possibilities to address the above problems. In addition, massive spatial data-mining technologies associated with probe-car tracking data have emerged. This paper discusses the major problems of spatial data-mining technologies for probe-car tracking data, such as true path restoration and the close correlation of spatial data. To address the road-matching issue in massive probe-car tracking data caused by the strong correlation combining road topology with map matching, this paper presents a MapReduce-based technology in the second spatial data model. The experimental results demonstrate that by implementing the proposed spatial data-mining system on distributed parallel computing, the computational performance was effectively improved by five times and the hardware requirements were significantly reduced.

ABOUT ADDITIONAL INDICATORS ROAD TRAFFIC ACCIDENTS IN THE RUSSIAN FEDERATION

2021 ◽  
pp. 29-34
Author(s):  
О.Н. Кузьмин ◽  
Е.В. Дедюлин
Keyword(s):  
Russian Federation ◽  
Road Safety ◽  
Road Network ◽  
Traffic Accidents ◽  
Road Traffic ◽  
Road Traffic Accidents ◽  
The Russian Federation ◽  
Network Safety

В статье анализируется информативность основных показателей аварийности, возможные неверные представления о повышении безопасности дорожного движения при снижении количества ДТП, необходимость учета степени безопасности дорожной сети при выборе мер, направленных на повышение безопасности дорожного движения, а также комплесная оценка этих мер и степени безопасности дорожной сети. The article analyzes the informativeness of the main indicators of accidents, possible misconceptions about improving road safety while reducing the number of accidents, as well as the need to take into account the degree of road safety when choosing measures aimed at improving road safety, assessing such measures in combination with the degree of road network safety.

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