Figure 1 - uploaded by Sittichai Choosumrong
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Routing calculation has an important role to play in emergency responses and decisions. For example,
it can help ambulances to take one patient to the hospital as fast as possible. This paper presents the
implementation of an alternative method to calculate the travel-time of the route, according to the location of an
accident and the situation at...
Citations
... In previous work, Choosumrong et al., (2012a) have prototyped dynamic routing for Emergency Route Decision Planning (ERDP). This prototype is based on a combination of the pgRouting algorithm with Analytical Hierarchy Process (AHP) for ERDP. ...
The main objective of this study is to implement a system for Emergency Routing Decision Planning (ERDP) based on service oriented architecture. A Web-based application is developed to facilitate ubiquitous dynamic routing services on up-to-date road network data. The system pays special attention to enhancing the ERDP system to facilitate timely and smooth data transfer between client and the server. The ERDP is built based on an integration of the pgRouting and Analytic Hierarchy Process (AHP) algorithm. pgRouting allows the clients to query the shortest path and travel time on the road network that is kept updated using data inputs from mobile client devices. Combined with AHP, this affords the calculation of minimum travel-time to the destination while considering many dynamic factors such as road condition and situations at destination. Static and dynamic road network data are maintained as separate tables in the ERDP system for anticipated improvements in processing speed. The routing algorithm is deployed as Web Processing Service (WPS) is using the ZOO kernel. Another highlight of the work is a jQuery-based mobile application which is employed to update the ERDP database from field sites.
This study demonstrates two scenarios for application of the ERDP Web services. In the first scenario of medical emergency, the ERDP calculates the route with minimum travel time and proximity of hospital to treat the patient. In the second case of routing service for rescue and evacuation, the ERDP provides dynamic route based on updates received from disaster forecast models. The system is developed entirely based on Open Source Software and its open architecture makes to easily amenable to customization and integration in a variety of application scenarios.
