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UVA TTA-Winter Weather Demand/Alternative Intersection Analysis
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When: 10/9/2014
Where: MAUTC Webinar

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MAUTC Webinar, October 9th  @2pm:

Winter Weather Demand Considerations for Network Performance Predictions
Development of Methodologies for Alternative Intersection Analysis

This is the fourth in a series of six webinars hosted by the Mid-Atlantic University Transportation Center showcasing MAUTC research conducted at the University of Virginia and Virginia Tech.

This webinar is free and open to everyone. Please forward this notice to anyone you think may be interested. Many thanks!

To register now, please visit the following link:

2:00 - 2:25 Pam Murray-Tuite (VT): “Winter Weather Demand Considerations for Network Performance Predictions.”

The 2013-2014 winter was particularly harsh for the US’ east coast.  Snow storms and below freezing temperatures caused disruptions to school and employer schedules and had potentially severe traffic implications.  For example, Atlanta, GA experienced gridlock when schools and employers released students/employees early in a low accumulation snow storm.  These traffic conditions, combined with low temperatures, emphasize the need to be properly prepared for winter weather and to better understand how travelers will react to different winter weather conditions and school and employer decisions.  Part of the study of travelers’ reactions includes what changes they may make in their trips, e.g., cancelling trips, adding trips, changing trip timing, changing transportation modes, changing routes, and changing the type of road primarily used (highway/arterial).  This webinar explores changes in traveler behavior, and factors associated with those changes, in the Northern Virginia area based on a behavioral intention survey.  Understanding the potential changes can allow state and local departments of transportation to better prepare for the changes and treat the roads in accordance with anticipated behavior as well as established priorities.

2:25 - 2:45 Discussion

2:45 - 3:10
Hesham Rakha/John Sangster (VT): “Development of Methodologies for Alternative Intersection Analysis.”

Alternative intersections have unique geometries that theoretically lead to improvements in safety and arterial throughput.  Widespread adoption of these designs has been slow, due in part to the lack of delay-based analysis methodologies for use in preliminary engineering.  Comparative analysis of these geometries previously required microsimulation of each alternative, until FHWA provided a capacity-based spreadsheet tool in 2011, the Capacity Analysis for the Planning of Junctions (CAP-X) program.  While the CAP-X tool provides a low-cost and easy to use software for the preliminary engineering stages of a project, the comparative results of this tool have yet to be shown to scale-up to delay-based comparative analysis.  If the tool indicates that designs x, y, and z perform best from a capacity perspective, there is no guarantee that x, y, and z will correspondingly perform best from a delay perspective.

3:10 - 3:30 Discussion

This webinar is sponsored by the Mid-Atlantic University Transportation Center and matching grants from the Virginia Department of Transportation. We plan additional webinars on the second Thursday of each month of 2014.  Future webinars include:

November 13:
Devin Harris (UVA) et al.:  “Implications of Damage and Deterioration on the Performance and Serviceability of Girder Bridges”

December 11:
Kyoungho Ahn (VT): “Developing a Real-Time Energy and Environmental Monitoring System.”
Jianhe Du (VT): “Investigating Attractiveness of Tolling Roads.”


Event: MAUTC Webinar October 9th
When: Thursday 9 October 2014, 02:00 PM - 03:30 PM
Time Zone: (GMT-05:00) Eastern Time (US and Canada)
Audio Conference Details: Audio Conference Details:

Participant pin code : 93886803
Other access numbers :

Participant pin code : 93886803
Other access numbers :

Conference Number(s):

Toll access number : 1-646-560-7802
Toll free access number : 1-888-407-5039

To register now, please visit the following link:

To know more about the event, please visit our website:

Thank you,

UVA Center for Transportation Studies