NEW YORK — A solution to the world's urban transportation problems could lie in two wheels not four, according to executives for General Motors Corp. and Segway Inc.

The companies announced Tuesday that they are working together to develop a two-wheeled, two-seat electric vehicle designed to be a fast, safe, inexpensive and clean alternative to traditional cars and trucks for cities across the world.

The Personal Urban Mobility and Accessibility, or PUMA, project also would involve a vast communications network that would allow vehicles to interact with each other, regulate the flow of traffic and prevent crashes from happening.

"We're excited about doing more with less," said Jim Norrod, chief executive of Segway, the Bedford, N.H.-based maker of electric scooters. "Less emissions, less dependability on foreign oil and less space".

"The 300-pound (136 kilogram) prototype runs on a lithium-ion battery and uses Segway's characteristic two-wheel balancing technology, along with dual electric motors. It's designed to reach speeds of up to 35 miles (56 kilometres)-per-hour and can run 35 miles on a single charge."

The companies did not release a projected cost for the vehicle, but said ideally its total operating cost -- including purchase price, insurance, maintenance and fuel -- would total between one-fourth and one-third of that of the average traditional vehicle.

Larry Burns, GM's vice-president of research and development, and strategic planning, said the project is part of Detroit-based GM's effort to remake itself as a purveyor of fuel-efficient vehicles. If Hummer took GM to the large-vehicle extreme, Burns said, the PUMA takes GM to the other.

Ideally, the vehicles would also be part of a communications network that through the use of transponder and GPS technology would allow them to drive themselves. The vehicles would automatically avoid obstacles such as pedestrians and other cars and therefore never crash, Burns said.

As a result, the PUMA vehicles would not need air bags or other traditional safety devices and include safety belts for "comfort purposes" only, he said.

Though the technology and its goals may seem like something out of science fiction, Burns said nothing new needs to be invented for it to become a reality.

"At this point, it's merely a business decision," he said.

Burns said that while putting that kind of communications infrastructure in place may still be a ways off for many American cities, the automaker is looking for a place, such as a college campus, where the vehicles could be put to use and grab a foothold in the market.

There's currently no timeline for production, Burns said.

The ambitious announcement also comes at a time when GM's future is hanging by a thread after receiving billions of dollars in federal aid and is in the midst of a vast restructuring that could still lead to a filing for bankruptcy protection.

Meanwhile, the ongoing recession has resulted in some of the lowest industrywide vehicle sales in more than a quarter century.

But Burns argued that some of the most revolutionary ideas have been born out of tough economic times.

"The next two months, and really 2009, is all about the reinvention of General Motors," he said.