As described further by the video above, PRT, also known as a podcar (typically a four-seater) is a public transportation system designed to work as an automatic vehichle on a network of specially-built guide ways. They are designed to make a non-stop journey to the individual's selected destination. Heathrow will host the world's first PRT trial; this system would bring significant benefits such as the provision of a quick and comfortable service and also contributing to improved environmental benefits.
Key features of PRT include:
- Energy efficiency - 4 times less energy usage compared to an average car.
- No pollution and/or less pollution generated as electric power plants are getting cleaner with development of renewable sources.
- Faster travel time - 3.5 times faster than a normal bus and 2-3 times faster than an automobile.
- Safer than other forms of transport due to automation, moderate and constant speed, operation on rails, no fuel on board, redundant design and seperation from pedestrians.
- Light wieght - less than 600kg (half the weight of a small automobile).
- Initial cost is high but it is considered to be cheaper in the longer term as they have a longer life span than an average car due to very few moving parts.
- Takes up a very small area of land and there is no need for car parks. 0.02% of land use compared to 30% for the automobile.
- Convenience - 24 hour service and the ease of use.
I reckon we probably will see more of PRTs installed all over the world if the Heathrow trial run is successful. I believe that this could be a start to building sustainable urban environments as it will minimise congestion and lead to the improvements of the air quality (less ghg emissiions).
Check this website for more details on PRT http://www.personalrapidtransit.com/. It's pretty impressive what PRTs can do :)
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