Accessibility along a Transit Line
Assuming a willingness to commute for 30 minutes, there is a gradual
decline in accessibility along a transit line. If a transit distance
of 5 minutes is assumed between each stop, then the accessibility radius
around the first stop (Ra) will include a 25 minute access time
(walking, public transit, driving, cycling). Each subsequent
stop implies a decline of this radius by a factor of 5 minutes. The
last stop (e), which is 25 minutes away, would have a radius of 5 minutes.
For instance, a commuter wishing to have a commuting time of 30
minutes or less would need to live within a radius of Rc to
access stop c. Extending the willingness to commute time will
extend the radius around each stop.