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In observance of the Thanksgiving holiday, all Douglas County Government offices will be closed Thursday, Nov. 28, and Friday, Nov. 29, 2024. Offices will reopen on Monday, Dec. 2, for normal business.

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Public Works

Flashing Yellow Arrow Deployment

For Traffic questions call 303-663-6237

Email Traffic Division
Graphic for traffic signals with different colored arrows and explanations of what a steady red arrow; steady yellow arrow, flashing yellow arrow and a steady green arrow mean

The graphic above explains how to treat an FYA when encountered at an intersection. Please keep an eye out as they are deployed to a Douglas County intersection near you!

The intent of the FYA display is to visually stimulate drivers to take extra caution when completing a permissive left turn across approaching traffic. In addition to emphasizing caution, the FYA also provides operational benefits over traditional permissive left-turn displays. One of these benefits includes the ability to address timeframes where higher than expected approach turn (left-turn vs approaching vehicle) accidents occur. The FYA enables “protected by time of day” (red arrow) left-turn operations to address temporal accident patterns while also providing the ability to provide permissive left-turn operations during low volume (early morning and/or late night) time periods. During protected-by-time-of-day operations (red arrow), the flashing yellow arrow display is turned off.

Traffic Engineering staff conducted a review of all signalized intersections in unincorporated Douglas County to ascertain the viability of implementing FYA. Not every intersection is a good FYA candidate for a variety of reasons, like safety and cost.

Intersections where Flashing Yellow Arrows have been deployed (updated Jan. 30, 2024):

  • Broadway & Plaza Dr/Northridge Rd (all approach left turns)
  • Broadway & Wildcat Reserve Pkwy (east/westbound approach left turns)
  • Chambers Rd & Cosmopolitan Cir (northbound approach left turns)
  • County Line Rd & Lucent Blvd (westbound approach left turns)
  • County Line Rd & Niagara St (east/westbound approach left turns)
  • County Line Rd & Shoppes St (7100 East) (east/westbound approach left turns)
  • County Line Rd & South Suburban St (westbound approach left turns)
  • Fairview Pkwy & Grace Blvd (southbound approach left turns)
  • Highlands Ranch Pkwy & Foothills Canyon Blvd (all approach left turns)
  • Highlands Ranch Pkwy & Wildcat Reserve Pkwy (all approach left turns)
  • Jamaica St & E-470 EB On-ramp/Mt. Spalding St (northbound and southbound approach left turns)
  • Lincoln Ave & 3rdSt (northbound and southbound approach left turns)
  • Lucent Blvd & Shea Center Dr/Park Central Dr (all approach left turns)
  • Lucent Blvd & Town Center Dr (northbound, southbound, and westbound approach left turns)
  • McArthur Ranch Rd & Valleybrook Dr/Wagon Box Cir (east/westbound approach left turns)
  • Meridian Blvd & Jamaica St (southbound approach left turns)
  • Meridian Blvd & Maroon Cir (all approach left turns)
  • Peoria St & Liberty Blvd (northbound approach left turns)
  • Quebec St/Monarch & McArthur Ranch Rd (northbound and southbound approach left turns)
  • Quebec St & Wildcat Ridge (northbound and southbound approach left turns)
  • Rampart Rd & Waterton Rd (all approach left turns)
  • Titan Rd & Moore Rd (westbound approach left turns)
  • Titan Rd & Roxborough Rd (all approach left turns)
  • University Blvd & 9350 S. (Highlands Ranch Marketplace) (all approach left turns)
  • University Blvd & Crosspointe Dr (all approach left turns)
  • Wildcat Reserve Pkwy & Grace Blvd/Cresthill Ln (northbound approach left turns)
  • Wildcat Reserve Pkwy & Spotted Owl Ave/Hyacinth Rd (all approach left turns)

Staff will monitor the performance of these intersections and will continue to identify other possible locations where the FYA could be a benefit to safety and operations.