Corvallis Area Metropolitan Planning Organization|
Technical advisory Committee Meeting
January 8th 2013, 3:00 pm
TAC Members Attending: Valerie Grigg-Devis, Randy Kugler, Roger Irvin, Robyn Bassett and Drew Foster
TAC Members Absent: Barry Hoffman
Guests Present: Joe Li, Martin Mann and Sam Ayash (ODOT TPAU)
Staff: Ali Bonakdar, Theresa Conley and Emma Chavez
||DECISION / CONCLUSION
|I. Meeting called to order at 3:05 pm
||In the absence of the chair, Roger Irvin called the meeting to order
|II. Agenda Review
||Roger reviewed the agenda and suggested introductions for the benefit of guests in the room.
||There were no changes to the Agenda
|III. Minutes of November 9th 2012 Meeting
||November 9th meeting minutes approved by consensus
|IV. Updating of the Corvallis Area MPO Travel Demand Model
||Ali Bonakdar introduced the topic, explaining that the model developed in 2004/05 will be updated with 2010 base data and new projections through 2040. In addition, a regional model will be developed covering Corvallis, Albany, Lebanon and Millersburg, called the CALM Model.
Sam Ayash, Martin Mann and Joe Li presented information regarding the two related models. Sam Ayash explained that the CAMPO Model data will be plugged into the CALM Model and will not require any additional work on CAMPO’s part. Martin Mann further outlined the CAMPO Model specifications and Joe Li outlined the CALM Model specifications.
Martin explained that the reasons for updating the CAMPO model included the availability of new 2010 Census data, the Corvallis-Philomath Corridor study and the opportunity to integrate with the CALM Model. The primary data sources for the CAMPO Model area ES202 data from the Employment Dept. and 2010 Census data. Additional information will be added, including household demographics, vehicle ownership, trip distribution and modal split. For continuity, the data will be put into the JEMNR model used in the previous CAMPO Model. This is a ‘one-size-fits-all’ model based on household surveys. TAZs will be used to organize the data, along with 7 districts formed along artificial boundaries such as roadways.
Data will be analyzed according to several other inputs: TAZs, transit routes (e.g. fare, network, headways, walk links, dwell time, etc); Auto lane miles & center lane miles (e.g. modes allowed, speed, volume, capacity, etc.); and external stations (e.g. ADT, % thru traffic, % trips generated in CAMPO area or going thru). Land use information will also be added to the model, including park acres, shopping center acres, special trip generators, parking costs and school attendance.
Martin discussed the large number of OSU students living in group quarters and explained that they are accounted for differently in the model. Group quarters and student travel goes into a ‘college module’. As part of the update, TPAU will try to better account for the travel patterns of students in group quarters. TAC members agreed that the new model needs to better reflect OSU student patterns.
In order to help identify ways that the 2004/05 CAMPO Model needs to be updated, Martin reviewed draft data produced by the old model after 2010 Census data was added. He pointed out areas where the projections appeared to be inaccurate and requested that the TAC review this draft material and recommend updates and areas where data needs to be redistributed or refined.
The TAC agreed that several additional meetings should be held to review the data and ‘ground truth’ the assumptions and inputs to the model. These meetings should include planning staff from each jurisdiction. Data needs identified include:
- Any land use changes since 2004 not reflected in the draft maps
- Turn restrictions
- Speed changes
- Additional or removal of travel lanes
- Park and rides
- Shopping center changes not reflected in draft maps
- More accurate information regarding trips to/from schools, including magnet and private schools
Joe Li presented information about the CALM Model. He explained that it covers parts of Benton, Linn and Marion counties, including the Corvallis Area MPO, the Albany Area MPO, the cities of Jefferson and Lebanon and parts of Linn County between the two MPOs. It covers 345 square miles, 1,129 lane miles, 156,000 residents, 62,000 households and 63,000 employees. The model will use data from LEHD and will not require any additional work from the CAMPO TAC (http://lehd.ces.census.gov/).
The CALM Model is needed due to the strong land use, transportation and economic interactions between the jurisdictions. The CALM Model will also allow the models from each of the jurisdictions to interaction, improving usability and output data. For example, the current CAMPO Model identifies 75,000 external trips but provides no explanation for origination or purpose. The CALM Model will help to clarify these types of external and through trips.
||Due to running past 5:00pm, there were no jurisdictional updates.
||Meeting adjourned at 5:25pm