Hedging risk in journey planning

Patent metadata

Field	Value
Publication number	US-9829334-B2
Application number	US-201213617065-A
Country	US
Kind code	B2
Filing date	Sep 14, 2012
Priority date	Aug 31, 2012
Publication date	Nov 28, 2017
Grant date	Nov 28, 2017

Abstract

Embodiments of the disclosure include a method for journey planning including receiving a journey planning request, the journey planning request having an origin and a destination in a transportation network. The method also includes calculating an optimized journey plan by identifying a plurality of routes through the transportation network from the origin to the destination and determining an uncertainty associated with each of the plurality of routes. Calculating an optimized journey plan also includes evaluating a robustness of each of the plurality of routes to the uncertainty associated with each of the plurality of routes and selecting the optimized journey plan based on the journey planning request and the robustness of each of the plurality of routes.

First claim

What is claimed is:

1. A method for journey planning through a multi-modal transportation system, the method comprising:
receiving a journey planning request, the journey planning request comprising an origin and a destination in the multi-modal 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 multi-modal 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; and
selecting the optimized journey plan based on the journey planning request and the robustness of each of the plurality of routes.

2. The method of claim 1 , wherein the journey planning request further comprises an optimization request and wherein selecting the optimized journey plan is further based on the optimization request.

3. The method of claim 2 , the optimization request comprises a worst case arrival time.

4. The method of claim 2 , the optimization request comprises a most consistent arrival time.

5. The method of claim 1 , wherein determining an uncertainty associated with each of the plurality of routes is based on a historical data associated with the multi-modal transportation network.

6. The method of claim 1 , wherein evaluating a robustness of each of the plurality of routes to the uncertainty associated with each of the plurality of routes includes determining a worst case travel time for each of the plurality of routes and an expected travel time for each of the plurality of routes.

7. The method of claim 1 , wherein at least one of the plurality of routes through the multi-modal transportation network from the origin to the destination includes multiple contingent branches.

Assignees

• Berlingerio Michele
• Botea Adi I
• Bouillet Eric P
• Calabrese Francesco
• Deleris Lea A
• Gresh Donna L
• Verscheure Olivier
• IBM

Inventors

• Berlingerio Michele
• Botea Adi I
• Bouillet Eric P
• Calabrese Francesco
• Deleris Lea A
• Gresh Donna L
• Verscheure Olivier

Classifications

• G01C21/36 Primary

  Input/output arrangements for on-board computers · CPC title

• G01C21/343

  Calculating itineraries (travelling salesman problem G06Q10/04; optimisation of routes G06Q10/047) · CPC title

• G01C21/3423 Primary

  Multimodal routing · CPC title

• G01C21/26

  specially adapted for navigation in a road network · CPC title

• G08G7/00

  Traffic control systems for simultaneous control of two or more different kinds of craft · CPC title