| 主权项 |
1. A computer system for journey planning, the computer system comprising:
a journey planning server having a processor, the processor configured to perform a method comprising: receiving a journey planning request, the journey planning request comprising an origin and a destination in a transportation network; receiving and storing information from the multi-modal transportation network regarding a state of one or more pieces of transportation equipment in the multi-modal transportation network, wherein the state of one or more pieces of equipment comprises at least one of on-schedule, off-schedule, and out-of-service; calculating, by a processor, an optimized journey plan, wherein calculating the optimized journey plan comprises:
identifying a plurality of routes through the transportation network from the origin to the destination;determining an uncertainty associated with each of the plurality of routes, wherein the uncertainty comprises a variability of a travel time along each route, wherein the variability is based on an expected travel time, a mode travel time, a median travel time and a standard deviation;evaluating a robustness of each of the plurality of routes to the uncertainty associated with each of the plurality of routes; andselecting the optimized journey plan based on the journey planning request and the robustness of each of the plurality of routes. |
