Isochrones as Indicators of the Influence of Traffic in Public Health: A Visual Simulation Application in Ávila, Spain

Abstract

It is well known that excessive rescue times after traffic accidents negatively affect the health of those injured. There is a need to quantitatively measure the impact of unexpected events like ambulance availability, weather, floating population and congestion in those rescue times. A family of indicators based on isochrones is disguised and proposed to understand the risk of the whole population as the probability of not being assisted on time. Indicators of health risk for local towns are also defined. The indicators are calculated using a simulation model and visualized in web format. The framework of analysis is validated using Ávila (Spain) and the problem of the optimal deployment of ambulances as a test-bench.

Boundary Objects in Design Studies: Reflections on the Collaborative Creation of Isochrone Maps

“…Figure 2 illustrates a typical isochrone map where the red color gradient indicates which part of the city is reachable from an origin in different time intervals. Isochrone maps are featured on many websites and have been applied to many application domains in mobility [EGL∗13, ZFA∗14, OG15], but there has been little attempt to visually improve them except at the algorithmic level (e. g., [MG10, GBCI11]). The closest work to improve isochrones visual appearance is IsoScope [GKvN14] that conveys time variability by animating isochrones over different times of the day, or lens‐based visualizations blending detailed networks views, with isochrones for context [LTD19].…”