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The network design for rapid transit system has been based on
single mode consideration traditionally. However, rapid transit
technology development in recent two decades can be categorized
into two classes, high-capacity systems and medium-capacity
systems. So there is a need to develop a model or an approach
to conduct the network design for rapid transit system with
composite technology. In approach of network design for rapid
transit system with composite technology,there are two main
points: one is the definition of composite technology, the
other is the criterion of optimization for network design. For
the former , this study adopts different technology for
different line in accordance with its patronage; For the
latter, this study searches a network with maximum patronage
and develop a heuristic algorithm to get it. The network of
rapid transit system can be divided into two parks: the trunk
line network and the branch lines. In modeling the optimization
for trunk line network,the factors of passenger route choice
behavior,the coverage of stations, and the characteristics of
rapid transit technology are considered. Finally,a fabricated
example is presented for demonstration.
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