Published: Dec. 7, 2016

Express lane signs at MM 39.8 Buffalo Highway, Boulder County | CC Photo by Xnatedawgx, April 2016According to the Colorado Department of Transportation (CDOT), Colorado has "passed the point where it can build its way out of [traffic] congestion." With the population exploding and transportation funding decreasing, a resolution was passed in February 2013 to change all High Occupancy Vehicle (HOV) express lanes from HOV 2 to HOV 3. 

This change will go into effect starting Sunday, Jan. 1, 2017. Free access to the express lanes will require at least three people (a driver plus two passengers) in each vehicle. Additionally, carpools using HOV lanes now must have an ExpressToll account with a transponder to enjoy free use.

Solo drivers and those with only one passenger must pay to travel in the express lane. However, motorcycles and buses will continue to be allowed free access.

The HOV policy revision ensures that express lanes remain free-flowing, so that those who choose to ride the bus, pay a toll or carpool always have a reliable and faster trip. Plus, getting more people into carpools reduces overall congestion and vehicle emissions.

If the new express lane requirements affect your daily commute, there are many transportation options available to you.

  • Use the general purpose lanes. Free general purpose lanes always exist alongside express lanes. Drivers benefit from less congestion in those lanes because of the traffic that diverts to the express lanes.
  • Ride the bus. RTD has many options for a fast commute, including bus rapid transit (BRT) along the U.S. 36 corridor. Visit the RTD website to explore your options.
  • Pay a toll. Go to expresstoll.com to get a pass, and pay lower tolls for a quick-and-easy trip.
  • Find an additional friend and carpool. CDOT will be providing free HOV switchable transponders to those who wish to exclusively carpool. Get yours at expresstoll.com. CDOT has also provided a list of partners to help you find a third person for your carpool, including:

For more information and to review campus carpool parking options, please visit the Parking and Transportation website. You can also email buffscommute@colorado.edu with any questions or concerns.