Taiwan has been successfully implementing bus dedicated lanes in the urban areas for more than a decade; freeway HQV lanes, however, are still controversial. By reviewing the 40-year development history, we found that HQV lanes in the US were originally proposed to encourage transit (bus) ridership, and later extended to paratransit (HOV) to well utilize the lane capacity. The HOV consensus between the environmental protection and transportation departments is reflected in the Clean Air Act and the three transportation acts-ISTEA, TEA-21, and SATETY-LU. Most metropolises with air pollution problems therefore have quite a few HQV networks. This paper brought four local topics of freeway HQV lanes into discussion: 1. Policy position of HQV lanes; 2. Market position of HQV lanes; 3. Limitation of bus dedicated lanes; 4. Timing of HQV lane implementation. If these topics can be clarified, HQV-based transit lanes are anticipated on the freeway system in Taiwan.