Analysis of the geographical accessibility of neurosurgical emergency hospitals in Sapporo city using GIS and AHP

Ohta, Kohei; Kobashi, Gén; Takano, Shin-ei; Kagaya, Seiichi; Yamada, H.; Minakami, Hisanori; Yamamura, Etsuo

doi:10.1080/13658810601135692

Cited by 52 publications

(23 citation statements)

References 22 publications

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“…Using the weighted elements allowed us to enhance the pgRouting algorithm and to implement the ERDP model for emergency routing in pgRouting. Similar approach was also demonstrated by Ohta et al (2007), but not implemented in an Open Source Web-GIS framework.…”

Section: The Concept Of Using the Pgrouting Capabilities To Modify mentioning

confidence: 81%

“…AHP was used to generate priorities weight values for all the elements to be used in the pgRouting algorithm for the computation of the minimum cost were carried about AHP with routing planning (Huang, 2004;Ohta et al, 2007;Sattayaprasert et al, 2008), but most of them use a static alternative route in terms of direct distance, road width and type and junction delay, between the start node and the destination node. In order to obtain more alternative routes on dynamic networks, in terms of emergency routing planning modelling, the present study is an enhancement of the pgRouting algorithm by integrating AHP.…”

Section: Discussionmentioning

confidence: 99%

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Multi-Criteria Emergency Route Planning Based on Analytical Hierarchy Process and pgRouting

2012

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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 the destination point. The minimum travel-time from the accident point to the nearest hospital is calculated and some others parameters are taken into account such as the availability of beds in the targeted hospital and the patient's state.The method is based on an adaptation of the pgRouting algorithm with an analytical hierarchy process (AHP) for the Emergency Route Decision Planning (ERDP). First, a weighted travel-time model was built based on a minimum timeconsumption criteria, with the consideration of three impedance factors that are influencing the ERDP. Then, AHP was used to calculate priority weights of the impedance factors and taken into account for every parameter which is related to the travel-time consumption. Further, a new and improved routing algorithm was implemented using and extending pgRouting to obtain the weighted travel-time according to the situation of the destination point.The integration of AHP and pgRouting constitutes a powerful tool for analysing both road conditions and the conditions at the destination point. It can be used for evacuation planning after natural disasters.

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Section: The Concept Of Using the Pgrouting Capabilities To Modify mentioning

confidence: 81%

Section: Discussionmentioning

confidence: 99%

Multi-Criteria Emergency Route Planning Based on Analytical Hierarchy Process and pgRouting

2012

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“…The first step in the methodology was to recognize the criteria affecting the location of RESs. To this end, on the basis of previous studies [27,[34][35][36][37][38], several factors affecting the location of RESs were identified and submitted to 30 experts for initial ranking. The selected experts who represented the local and national university, the state RESs and EMS staff and operators filled the pairwise matrices of our study.…”

Section: Methodsmentioning

confidence: 99%

Traffic Accident Spatial Simulation Modeling for Planning of Road Emergency Services

Naboureh

Feizizadeh

Naboureh

et al. 2019

IJGI

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The appropriate locations of road emergency stations (RESs) can help to decrease the impact of traffic accidents that cause around 50 million injuries per year worldwide. In this research, the appropriateness of existing RESs in the Khuzestan province, Iran, was assessed using an integrated fuzzy analytical hierarchy process (FAHP) and geographic information system (GIS) approach. The data used in this research were collected from different sources, including the department of roads, the department of health, the statistics organization, forensics, police centers, the surveying and geological department, remotely-sensed and global positioning system (GPS) data of accident high crash zones. On the basis of previous studies and the requirements of the Ministry of Health and Medical Education, as well as the department of roads of Iran for the location of RESs, nine criteria and 19 sub-criteria were adopted, including population, safety, environmental indicators, compatible area in RES, incompatible area in RES, type of road, accident high crash zones, traffic level and performance radius. The FAHP yielded the criteria weights and the ideal locations for establishing RESs using GIS analysis and aggregation functions. The resulting map matched the known road accident and high crash zones very well. The results indicated that the current RES stations are not distributed appropriately along the major roads of the Khuzestan province, and a re-arrangement is suggested. The finding of the present study can help decision-makers and authorities to achieve sustainable road safety in the case study area.of medical services, such as pre-hospital medical and transportation, trauma care and assistance for people who in need of emergency care [7]. Definitions differ, but in most cases, the geographical availability and provision of services are introduced as main factors [8,9]. Choosing optimal locations for emergency stations can help to achieve these aims. The locations of road emergency stations (RESs) are one of the most critical factors that can play a role in the degree of damage caused by accidents. Proper distribution of RESs is key to being able to respond to accidents within a standard time [10]. Therefore, determining optimum locations for RESs is a vital issue that road administrators face [11].After cardiovascular diseases, road accidents are the main reason for death in Iran [12][13][14]. Iran has a very high rate of road accidents; it is twenty times greater than that of the world's average [15]. The number of fatalities per 100,000 people per year for Iran is 32.1 (Figure 1). According to a UNICEF report, every 19 min one person passes away on Iran's roads, and every 2 min somebody is informed that one of his/her family members has survived a crash accident but with severe injury that may cause lifetime disability [16]. Each year, road traffic accidents cause the death of almost 28,000 people and disable or injure 300,000 more in Iran [12]. Cost of traffic fatalities in Iran is estimated at $6 billion U.S. every y...

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“…The analytic hierarchy process has been widely used in various domains to solve multi-criteria evaluation problems (Saaty 1977;Chen et al 2007;Ohta et al 2007;Chen et al 2010;Chen and Paydar 2012). It has also been utilized in the field of disaster risk assessment and management (Zhang and Wang 2011;Yang et al 2012;Orencio and Fujii 2013;Chen et al 2015).…”

Section: Analytic Hierarchy Process (Ahp) and Weight Sensitivity Analmentioning

confidence: 99%

Multi-criteria Satisfaction Assessment of the Spatial Distribution of Urban Emergency Shelters Based on High-Precision Population Estimation

Wen

2016

Int J Disaster Risk Sci

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This article introduces a framework for the multi-criteria satisfaction assessment of the spatial distribution of urban emergency shelters. A GIS-based analytic hierarchy process approach was utilized to conduct the assessment based on selected criteria layers for daytime and nighttime scenarios, respectively. The layers were generated from high-precision land use data based on highresolution aerial images and census data. Considering the uncertainty in criteria weighting, a spatial sensitivity analysis was undertaken for deriving more accurate results. The feasibility of the framework was tested on a case study in Jing'an District, Shanghai, China. The assessment results show that both at nighttime and during daytime, even if all potentially available shelters are open, the demand in large areas can only be marginally satisfied or not satisfied, especially in the northern, eastern, and central parts of Jing'an District. The quantitative analysis of the satisfaction conditions of the buildings or land parcels and the affected people, especially children and the elderly, shows a low satisfaction level of shelter services in these areas. The satisfaction assessment of emergency shelters can help government decision makers find low satisfaction areas of sheltering services and support further locationallocation optimization of urban emergency shelters.

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Analysis of the geographical accessibility of neurosurgical emergency hospitals in Sapporo city using GIS and AHP

Cited by 52 publications

References 22 publications

Multi-Criteria Emergency Route Planning Based on Analytical Hierarchy Process and pgRouting

Multi-Criteria Emergency Route Planning Based on Analytical Hierarchy Process and pgRouting

Traffic Accident Spatial Simulation Modeling for Planning of Road Emergency Services

Multi-criteria Satisfaction Assessment of the Spatial Distribution of Urban Emergency Shelters Based on High-Precision Population Estimation

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