State Senator Chris Romer (D-Denver) is a major sponsor of the bill, as is State Senator Dan Gibbs, D-Silverthorne.
Traffic engineers studying the project have been lukewarm on this idea that is common sense to anyone stuck in this traffic, similar to the HOV lane approach used on parts of I-25 and US 36 between Denver and Boulder, but with a different implementation method. But, my bet is that Senator Romer is right on this one.
The mountains make any infrastructure change to the I-70 corridor exceedingly expensive, whether the soultion is some form of rail transporation, more lanes or some other solution, but the real problem is really limited to the one that this proposal identifies.
The cost would be modest:
A more permanent zipper-lane project in Massachusetts costs $1.2 million annually to operate twice a day, five days a week along a 6-mile stretch of Boston's Southeast Expressway. Barrier Systems president Chris Sanders estimated the annual cost to Colorado would be much less and that upfront costs would range from $20 million to $40 million.
In contrast, other solutions designed to address essentially the same problem cost around $1,000 million to $10,000 million and carry with them comparable or larger maintenance costs, or involve unpleasant tolls to fund "highway capacity expansion" that received bipartisan support.