when there is insufficient demand to justify direct service according to the transport authority's
network planning criteria? Then, people who choose to travel by public transportation may
have to transfer, or interchange 2, between modes or between different services of the same
mode (Transport for London 2001). (Note that in this case, 'interchange' refers to the act of
transferring, but it may also refer to the physical location where interchange occurs, which
may or may not be a purpose-built facility. The distinction should be evident from the
context.)