The time-space concept is a new approach to the planning and design of pedestrian facilities. Conceptually, it considers pedestrian facilities as time-space zones in which moving and standing pedestrians require different amounts of space and occupy that space for different periods of time. The subject of this paper is the applicationof the time-space approach to a transit station platform. The time-space approach can address many issues that cannot be considered by using traditional analytical procedures. These issues include the (a) duration of peak loadings, (b) amount of time spent waiting, (c) amount of walking on the platform, (d) location of access points, (e)spatial distribution of passengers on the platforms, and (f) the way in which passengers actually use the platform. This paper shows how the time-space concept can be used to analyze platforms at a relatively simple, aggregate level, and then goes on to develop more detailed, disaggregated analyses, exploring how the level of detail at which the problem is analyzed affects the results. the location of the platform access stairs is changed in a final example to demonstrate the ability of the time-space method to reflect various platform conditions and configurations. Examined in this application study is a platform of a downtown bus tunnel station in which buses will operate in platoons of four vehicles at close headways. However, the time-space concept presented here has wide application to many types offacilities that must handle large volumes of pedestrians involved in many types of activities. This paper appeared in transportation research record no. 1152, rail rapid transit and planning tools. For covering abstract see irrd no 818412.
Abstract