The Colorado Department of Transportation (CDOT) tested a new way of metering traffic at the Eisenhower/Johnson Tunnels on Saturday, December 8, 2012. For the past 25 years, CDOT has metered traffic at the Tunnel when traffic volumes exceed of the capacity of the highway or when an accident or inclement weather causes traffic to come to a standstill, backing up into the tunnel.  The typical metering operation has been to stop all traffic from entering the tunnel, with stops of 15-20 minutes at a time, on average in order to keep the tunnel clear for emergency vehicles. Metering is done for the safety of the traveling public.

* 1. Have you ever experienced metering at the Eisenhower/Johnson Tunnels before today?

* 2. Do you think the continuous flow metering used today is more effective than the traditional method?

* 3. With Continuous Flow Metering, traffic will be spread into four lanes with traffic signals located above each lane.  The traffic signals will be used to alternate lanes of traffic in an effort to more efficiently regulate the flow of traffic into the tunnel.  When you used this system on Saturday, was the approach to the tunnel and the metering method easy to follow?

* 4. While reduced delay may benefit from continuous flow metering, it’s not likely to be a significant improvement but will still keep traffic flowing more effectively than with traditional metering. Would you prefer CDOT implement Continuous Flow Metering or resort back to traditional metering?

* 5. Please provide any additional comments or questions regarding continuous flow metering.