Railway and road isochrones for Berlin and Hannover (1999 - 2000) |
|
|
|
People usually judge the quality of the transportation networks under the aspect of travel times. How long does it take to travel from City A to City B or how many cities are accessible or which area is reachable in a given time period? The latter aspect is usually represented by so-called travel time isochrones. These isochrones enclose the area that can be reached from a given origin within a certain time. On this background 30, 60, 90 and 120 minutes travel time isochrone maps from Berlin and from Hannover for passenger rail and road transport were generated. The travel time isochrones are based on the RRG GIS trans-European road and rail transportation networks. The isochrones for Hannover were published in Volume 9 „Communication and Transport“ of the Nationalatlas Bundesrepublik Deutschland. Basically, any desired origin can be selected using any desired time thresold for the generation of such isochrones. The same further improved methodology was also applied in ESPON Project 1.1.1 to construct 45-minute isochrones as basis for the delimitation of so-called Functional Urban Areas. Moreover, this method will also be integrated into the toolbox for railway planning and railway maintenance currently developed in the framework of the VietTrain project. A short description of the methodology to construct isochrones can be found here.
|
|
|
