Will Toor and Mike Salisbury at the Southwest Energy Efficiency Project have put together a good paper called Managed Lanes in Colorado (it’s a PDF) that looks at the policy rationale behind (and a few issues with) creating additional highway capacity in the form of managed lanes with tolling, that also allow high occupancy vehicles and transit to take advantage of the investment, addressing some of the “Lexus Lane” criticism of using tolls in the public right of way (on projects that are still mostly publicly funded). It’s not quite as fun to read as my magnum opus from this winter on the same topic (US 36: For Whom the Road Tolls) but might be more appropriate for forwarding to policymakers.