High-speed rail is generally regarded as the pinnacle of attractive and green transportation. But all too often, it makes train travel more expensive and less flexible. In the end, costly high-speed lines may just push more people into cars.
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Building high-speed rail systems require steel and concrete, the manufacturing of which typically generates greenhouse gases. Trucks, bulldozers, and other construction site equipment also consume energy. Thus, during their long construction phases, high-speed rail projects add greenhouse gases.
As mentioned earlier, I find that counties being affected by high-speed rail upgrade experienced 4-6 percent GDP and GDP per capita reduction, which can explain around 64 percent of the predicted GDP growth differentials between the control and treatment counties.
HSR is electrically powered and can run 100% on clean, safe renewable energy. One high speed train powered by the wind can carry more passengers than 9 oil-burning, carbon-spewing airplanes!
Thus, during their long construction phases, high-speed rail projects add greenhouse gases. Adding lanes to existing highways also generates greenhouse gases, but to the extent that recycled asphalt is used for road paving climate impacts can be somewhat reduced.
Eurostar estimates that a one-way train trip emits around 10 pounds (4.5 kilograms) of CO2 per passenger, making it a much more sustainable choice compared to flying.
Implementing high-speed rail will keep billions of dollars in the U.S. economy by decreasing the amount of oil that the U.S. consumes. According to the International Association of Railways (UIC), high-speed rail is eight times more energy efficient than airplanes and four times more efficient than automobile use.
Most passenger trains, however, make many intermediate stops, and the trains must be sized to meet the maximum demand along the route. As a result, many trains tend to be relatively empty for much of their journeys, greatly reducing their energy efficiency.
The 2012 analysis conservatively assumes that systemwide electrical energy requirements for the High- Speed Train HST system will total 16.55 GWh/day, which includes energy required for traction, on board service, stations, maintenance facilities, dwells, nonrevenue operation, , and transmission and transformer losses ...
46.0 g CO2 / pkmThe analysis concludes that the carbon footprint of high speed rail including operation, track construction and rolling stock construction is about 14 to 16 times less than transport by private car or airplane.