development of dynamic routing service for ...

DEVELOPMENT OF DYNAMIC ROUTING SERVICE FOR EMERGENCY SCENARIOS USING FOSS4G Sittichai Choosumrong*, Venkatesh Raghavan** and Daisuke Yoshida** * Faculty of Agriculture, Natural Resources and Environment, Naresuan University, Phitsanulok, Thailand 65000 ** Graduate School for Creative Cities, Osaka City University 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan Email: [email protected]

♦ABSTRACT This study aims to implement a system for Emergency Routing Decision Planning (ERDP) based on service oriented architecture. A Webbased application is has developed to facilitate ubiquitous dynamic routing services on up-to-date road network data. An improved weighted travel-time algorithm has been developed by integrating pgRouting and Analytic Hierarchy Process (AHP). Routes computations are done considering situation at source, transit and destinations and the AHP is used to prioritize amongst possible destination considering impedance factors affecting travel time. The routing algorithm is deployed as Web Processing Service (WPS) is using the ZOO kernel.

♦ INTRODUCTION

♦ METHODOLOGY

In recent times, sprawling cities are seen to increasingly experience sudden and unexpected localized downpours induced by urban microclimate. While such unexpected events are difficult to predict, efficient c o m p u ta ti o n a n d q u i c k dissemination of information on alternative routes could be the only way to minimize loss of lives and property in such emergency situations.

Choosumrong et al. (2014) focused on integration of AHP and pgRouting to implementing Emergency Routing Decision Planning (ERDP). To implement the new routing service, in this p a p e r, Z O O K e r n e l i s available as a robust WPS implementation that can be used to create, manage and chain WPS-compliant services by loading geospatial libraries dynamically

♦ RESULTS

♦ DISCUSSION AND CONCLUSIONS

The ERDP prototype incorporates functionality to update and query road network from mobile Road blocked

Road Select Reporting

Database structure for dynamic routing

The first scenario, as a possible application scenario, this Section discusses a routing scenario for medical emergency

•  Successful implementation of ERDP system using available FOSS4G stack, Open Data and Open Geospatial Standard affords the immense benefits of building interoperable, scalable and robust platform to offer routing services in normal and emergency situations. •  Adoption of ZOO WPS standard enables easy integration of simulation models. New routing results reflect dynamic road conditions that are automatically updated based on the results disaster forecast models. •  Further, it has been demonstrated that GRASS GIS modeling tools can be also easily integrated with ZOO-Kernel and deployed as WPS.

The second scenario of disaster situation, dynamic information such as travel times may change after initial routes have been computed and the routing result must be recalculated b a s e d o n t h e •  The future developments real-time position of the rainfall data could be updated destination and automatically by connecting to the the travel-time. data providers such as Thailand Routing result when there is no flood

Routing result after 2 hrs of flooding

Integrated Water Resource Management. ♦ REFERENCE

Multi-routing calculation Routing result after 3 hrs of flooding

Routing result after 7 hrs of flooding

Choosumrong, S., Raghavan, V., Delucchi, L., Yoshida, D. and Vinayaraj, P. ; Implementation of Dynamic Routing as a Web Service for Emergency Routing Decision Planning, International Journal of Geoinformatics, 10(2), 13-20 (2014) (ISSN 1686-6576).

♦ Acknowledgements

Dynamic routing result updates by flooding data

Thank you all to dear ZOO tribe, Mr.Gerald Fernoy, Dr. Nicolas Bozon, Dr. Massimiliano Cannata, Mr. Jeff Mckenna, Mr. Luca Delucchi and Mr. Hirofumi Hayashi for their joyful encouragements as friend. I hope the ZOO project is going to make a huge impact in various FOSS4G related communities.