Thanks for being concerned about the problem and taking steps to address it. Also, thanks for making input easy via the internet. Enabling constituents a voice regarding current issues is a great concept that enhances representative government. I hope it spreads.
Think globally (see the big picture). Investigate solutions that have been implemented in other parts of the world, especially Europe and Asia. Tolls are a repressive burden on those who have already paid taxes for highway construction and maintenance. Restricting commercial vehicles from travel on highways at certain times unfairly inconveniences a particular segment of society, and adds to confusion, traffic jams, and ill will. The focus needs to move away from punishing people whether they want to enjoy the Colorado lifestyle or simply make a living. Instead, we should encourage more commercial and recreational travel to and through the mountains which helps keep the Colorado economy robust (by the way, the State spends money advertising our resources).
The simplistic identification of the problem is, too many private vehicles on the same stretch of road at he same time. The simplistic responsibility of government is to provide infrastructure that, in this case, encourages people to use an alternative method of travel. The solutions (short- and long-term) involve mass transportation. Even if it were possible to add more and more traffic lanes, the inexorable growth of traffic going forward negates that solution. Instead, use the tools we have on hand.
People will gladly leave their cars and use mass transportation if is is equivalent in cost and more convenient for them to do so than otherwise. Suggestions: