Work zone detection
Download
1 / 14

Work Zone Detection - PowerPoint PPT Presentation


  • 94 Views
  • Uploaded on

Work Zone Detection. Brian Kary and Terry Haukom - RTMC. Why Do It. Provide Delay Information To Motorists Potential for Diversion Perception Tracking Survey Results. Travel Time Messages – Ratings & Comments.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Work Zone Detection' - aurora


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Work zone detection

Work Zone Detection

Brian Kary and Terry Haukom- RTMC


Why do it
Why Do It

  • Provide Delay Information To Motorists

  • Potential for Diversion

  • Perception Tracking Survey Results


Travel time messages ratings comments
Travel Time Messages – Ratings & Comments

Q71d. How would you rate the idea of posting travel TIME information on overhead electronic signs as a tool to manage traffic?

All Drivers

  • Overall, drivers continue to consider displaying travel time information on overhead electronic signs to be a good idea.

    • There is a significant increase in the proportion of drivers who consider displaying travel time messages an “Excellent” idea.

N = Base # = Frequency

Data noted with arrow is significantly lower or higher respectively than 2011 at the 95% confidence level.

*Totals may not equal 100% due to rounding.

Mean = 8.19

Mean = 8.12


Travel time messages actionability
Travel Time Messages - Actionability

Q71b. How often, if at all, do you take an ALTERNATE ROUTE because a travel time message on an overhead electronic message sign showed a longer time than your usual time for the trip?

  • Among those drivers who make a route decision based on a travel time message, nearly 6 in 10 chose to take an alternate route at least some of the time.

Have Made an Alternate Route Decision Based on Time Message Info

58%

N = Base # = Frequency

*Totals may not equal 100% due to rounding.

Data noted with arrow is significantly lower or higher respectively than 2011 at the 95% confidence level.


Why integrate with rtmc
Why Integrate with RTMC?

  • Proven Method of Calculating Travel Times

  • Reduced Costs

    • Utilize existing 150+ DMS

    • Utilize detection outside of work zone

      • Currently have 400 miles of freeway instrumented with loop detection

      • Future detection will utilize more Wavetronics sensors which may allow detection within work zones

  • Traveler Information




Detection trailer
Detection Trailer

  • Wavetronics Sensor

  • Camera

  • Wireless Modem

  • Solar Power


Travel time zone
Travel Time Zone

Distance Between

Stations = ½ mile

Distance Between

Stations = ½ mile

Error Caused by Increased Spacing

Between 55 MPH and 5 MPH


Past projects
Past Projects

  • Included in Main Project – Lump Sum

    • I-35E – From CR 96 to I-35

      • $250,000

    • I-694 – From Hwy 61 to Hwy 5

      • $185,000

  • Separate Project

    • I-494 – From Hwy 100 to 34th Ave (SP 2785-392)

      • $262,300


Issues with past projects
Issues with Past Projects

  • Not enough lead time for integration

  • Lack of communications about traffic switches

  • Inadequate detection methods

    • Increased detection spacing

    • Probe data


Metro wide project sp 8825 465
Metro Wide Project - SP 8825-465

  • Total Project Estimated Cost - $750,000

  • Provide one prototype trailer.

  • SP 0285-65 on I-694 from Hwy 252 to I-35W. 

    • Provide 16 trailers.

  • SP 1982-161 on I-35E from I-35 south split to Cliff Rd. 

    • Provide 8 trailers.  

  • SP 2776-103 Hwy 169 River Bridge. 

    • Provide 18 trailers plus 3 PCMS.

  • SP 7080-51, 7080-50 on I-35 from District Border to I-35 south split. 

    • Provide 30 trailers which includes 3 w/ cameras plus 3 PCMS. 


Questions?Brian KaryFreeway Operations [email protected] HaukomRTMC Design and Maintenance [email protected]


ad