NACIS 2016 Presentation
Jeff Allen, University of Toronto
Steven Farber, University of Toronto Scarborough
Isochrones are often used for visual analysis of mobility and accessibility in urban areas. We will discuss an alternative method to conventional isochrones; using computed travel times to classify network segments rather than generating isolines or polygons. We will outline the data, tools, and geoprocessing steps required to make these kind of maps as well as discuss visualization considerations for different scales, subject matter, and for static and interactive maps. Further discussion will include their advantages and disadvantages when compared to conventional isochrones, particularly in terms of classification options and mapping in conjunction with other data. Finally, we will comment on how this method results in potential benefits for subsequent spatial analysis and how it can be scaled for multiple origin points, travel modes, departure times, and transit scenarios.