Upload
nancy-bracknell
View
215
Download
3
Tags:
Embed Size (px)
Citation preview
Transportation leadership you can trust.
presented to
13th Transportation Planning Applications Conference
presented by
Thomas Rossi
May 10, 2011
Integration of an Activity Based Model, Traffic and Transit Simulation Models, and MOVES
2
SHRP Project C10
Partnership to Develop an Integrated, Advanced Travel Demand Model and a Fine-Grained, Time-Sensitive Network
3
SHRP C10B Team
Cambridge Systematics, Inc.
Sacramento Area Council of Governments
University of Arizona
University of Illinois, Chicago
Sonoma Technology, Inc.
Fehr and Peers
4
Project Goals and Objectives
Improve modeling process to address policy and investment questions
Facilitate further development, deployment, and application of procedures
Make operational an advanced travel demand model integrated with a fine-grained, time-dependent network
5
Secondary Objectives
Produce a portable, transferable product
Incorporate products from related SHRP projects
Incorporate travel time reliability into the modeling capabilities
Demonstrate the application of outputs of the integrated model to estimate greenhouse gas emissions using MOVES
Demonstrate the dynamic integrated model set in a real-world environment on selected policies
6
Integrated Modeling Approach
7
Integrated Modeling Approach (continued)
8
Model Integration IssuesFrom Model Design Plan
Use of tour information in the traffic simulation
Obtaining departure time profiles
Distributed values of time, and other information about travelers
Transit vehicle run information
Network skimming process and feedback of travel times
Data management across integrated model components
9
Activity Rescheduling
Preplanned Schedulemade previously
Initial Decision Process
Rescheduling Module
Final Preplanned Schedule for time t
Change in network condition
Change in activity attributes
Rescheduling? N
Y
t=t+1
Updated preplanned schedule for time t
Variable Value-of-Time
Escort Tours
11
Initial Model Interface
12
Draft Model Interface – Example of Results
Integrated Modeling Approach
Other Ongoing Tasks
Incorporation of completed components (e.g. transit simulation)
Testing on larger subarea – performance
Development of regional model
Validation
Documentation
SHRP C10B Web Portal
15
For Further Information…
http://www.shrp2c10.org/SHRPC10Portal/Home.aspx
www.dynust.net
16