Paper Title
Determination of Ambulance Parking Spots to Ensure Comprehensive Coverage of Service Areas Within the Designated Timeframe

Abstract
This study proposes the allocation of ambulance emergency medical services (EMS) parking spots in the Khlong Sam Wa district, one of Bangkok's 50 districts, using the Maximal Covering Location Model. Khlong Sam Wa lacks a hospital within its area and is primarily residential, with the highest population density among all Bangkok districts. In the event of EMS, the ambulances cannot reach the patient within 8 minutes. The study considered various parameters, including household numbers and distances between designated ambulances parking spots and residential areas across 18 communities in Khlong Sam Wa. The goal was to pinpoint suitable locations for ambulance parking spots that ensure coverage within an 8-minute travel time. The ambulance parking spots are strategically positioned to cover different distances based on average travel speeds: 3 kilometers at 23 km/h, 4 kilometers at 30 km/h, and 5 kilometers at 38 km/h. According to the study findings, designating 8 emergency parking spots, each within a 5-kilometer radius of the community, guarantees that ambulance can be deliver within 8 minutes, achieving up to 100 percent coverage. Keywords - Emergency Medical Service (EMS), Ambulance Location, Maximal Covering Location Problem, Service Area Coverage