Where have Ramp Management Strategies been Implemented?
Ramp management strategies have been used and routinely proven effective in cities all across the U.S, stemming back as far as the 1960s. For instance, the first ramp meter was deployed in Chicago in 1963, and as of 2002 the number of ramp meters, in cities across the U.S. has grown to roughly 2,160. Ramp meters have been deployed in metropolitan areas including Chicago, Minneapolis, Los Angles and Detroit. Similarly, at least six agencies have indicated they have temporarily closed ramps that enter or exit freeway facilities. Special use strategies such as HOV flyover ramps and HOV bypass lanes have been implemented in cities such as Seattle and San Francisco.
