16 Sep 2010
The UK should develop regulations for a new class of urban car, according to influential car designer Gordon Murray.
Interviewed at the Low Carbon Vehicles conference in Bedfordshire today, Murray said there was a need for legislation for vehicles that would sit between full-blown cars, which must be crash-tested to withstand high-speed impacts, and quadricycles, which are not required to pass any kind of crash test at all. The best-known quadricycle on UK roads is the G-Wiz electric vehicle.
Murray said that the Euro NCAP scheme, which publicises the results of crash tests, has led to a current generation of cars that are poorly suited to the safety demands of urban settings.
“EuroNCAP has been a tremendous success and has saved a lot of lives, but we’ve ended up with cars where the front end is so stiff, to protect the occupants in a high-speed crash, that they’ve become very unfriendly in an urban environment. They’re not designed to cope well with a low-speed crash. For urban cars, we need a crumple zone that starts working at 15 to 20mph, not at 40mph.”
Murray added that the new regulations he proposes could encourage the take-up of lighter, smaller and more environmentally friendly vehicles.
“To date, the only government that’s taken urban cars seriously is Japan,” he said. “It has had the Kei car format for decades, which makes up [a substantial part] of the market in Japan.”
Kei car regulations impose limits on the physical size of a car and its maximum power output, in return for concessions in tax and parking regulations.
Murray’s company, Gordon Murray Design, has developed a new method for building cars called iStream, which aims to dramatically reduce the energy and resources required for manufacture. His first concept built to demonstrate the technique, called the T25, is an ultra-compact three-seat urban car designed to park nose-to-the-kerb, with three T25s fitting in a single conventional parking space.
The company is currently in negotiations with potential customers that might put these ideas onto the road. Some are current carmakers but others are “owners of brands”, according to Murray. He used Virgin as an example of the kind of non-automotive organisation that might enter the market through the iStream process.
Despite its compact dimensions – it is shorter than a Smart car – the T25 has been built to meet full-size car regulations, with Murray predicting a four-star result for occupant safety under the EuroNCAP test regime.
Murray’s company is a member of the Automotive Council, a body set up under the previous Labour government to co-ordinate automotive policy making. Murray said he hoped to use this role to lobby for new rules.
“I sit on the council, so I’m going to be on a mission as soon as the new car is up and running,” he said.
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WHAT DO YOU THINK? Add your comment
Query feasibility of proposal (in so far as I understand it)
A small urban car, thus likely to have a shorter crumple zone w.r.t. a large highway car, may well benefit in low speed crashes from a structure designed to start aborbing energy at a 20 mph threshold (cabin max decel lower). However, how are we to ensure that the urban vehicle will only be involved in low speed accidents of the type for which its' structure was optomized? Will a necessary consequence of this class of vehicle require an enforced segregation of urban vehicles from highway vehicles? Such segregation would seem to be warrented by the fact that the urban vehicle would be at an extreme disadvantage in a collision with a fast traveling highway vehicle.
Posted by Brian Paul Wiegand, 08 Jan 2011
An Adjustable Crumple Zone
I have invented a way to optimally absorb collisions at different speeds. My existing US Patent 7,699,347 is enhanced by a new idea. The new invention will be placed on my website in the next month or two. To see the original invention, go to www.safersmallcars.com
Posted by steve shoap, 17 Sep 2010