The Environmentally Sustainable Transport System Plan also proposes ambitious actions to promote road-to-rail modal shift for both freight and passenger transport, which include extensions of mass rapid transit lines, construction of double-track railways and improvement of bus transit in the Bangkok Metro areas. A vehicle tax scheme based on CO2 emission was also approved and will become effective beginning 2016.
vehicle tax scheme based on co2 emission
What upstream policies and strategies are mentioned in  Transport Sector ?