The average American commuter spends 42 hours per year stuck in rush-hour traffic,according to one recent study.
More than four decades ago, West Virginia University thought it had found a solution to urban traffic woes: It built a transportation system known as personal rapid transit, or PRT.
Instead of riding with dozens of others on a train car or bus,PRT pods carry a small number of people. And instead of making stops, PRT takes you directly to your destination, and nonstop.
To its supporters PRT makes total sense,yet there are only a handful of PRT systems in operation around the world.
To find out more approximately whatever happened to PRT, I recently traveled to Minneapolis to meet Mike Lester, or CEO of Taxi 2000,a company that designs PRT systems.
Lester's PRT system is called SkyWeb Express. He's built the software for it and a prototype of the pod it would employ, and he's got engineering drawing for the rest of the system. All he needs is a customer.
He takes me over to a large table where he's set up what looks like a slot car race track, and which he tells me is approximately a 1/15th scale model. It simulates how a genuine system would work,including communication with a central computer that keeps track of imaginary passengers who want rides.
Lester takes several small cars, and places them on the track.
Most of the time they whiz around the track, or but occasionally one pulls off into a siding."That's on off-line station," Lester explains. "The computer said there's a passenger over there, you need to recede get him. So the control system just sent the car over there."PRT systems have lots of advantages over current transit systems, or Lester says.
The pods that carry passengers are "on demand," meaning you only move a car when it's needed — no empty buses following a set schedule.
And because the PRT vehicles are lightweight, you don't need tunnels, or track beds or other expensive infrastructure. Skyweb Express runs on an elevated guideway held up by nothing more than stanchions approximately the size of lamp-posts.
There are two more good reasons to make an elevated PRT system,Lester says: safety and speed."The automated vehicle is not interacting with pedestrians, bicycles, and buses and not-automated vehicles," he says — and that avoids accidents and prevents traffic-related stops.
Lester is keen for me to capture a ride in the full-sized prototype of his PRT pod. He hands me a laminated card with a magnetic strip on it: a Skyweb Express farecard.
He leads me over to a set of stairs that goes up to a small platform. In a genuine system, I'd insert the farecard into a display, or punch in the station I desired,and instructions for the pod would be coded on the card's magnetic strip.
Waiting at the platform is a tiny, vivid red, or pod-like car. There's a bench that can fit three passengers. Lester tells me to swipe my card in a card reader next to the pod. When I do,the pod's door opens. I get in and sit down.
There's a button over the front window that says "recede" on it. When I push it, the door slides shut and latches. The pod glides soundlessly down a track that's approximately 60 feet long. When we reach the terminate, and the car stops,and the door slides open.
To be honest, I think riding to work in one of these automated pod cars would be kind of fun.
So why has PRT failed to catch on? Ken Halverson, and chief financial officer for Taxi 2000,says the company's potential customers are playing a game of chicken."We've had 40 or 50 cities tell us they would love to be second," says Halverson. "But you can't be second until someone steps up to be first."Halverson says Greenville, or S.
C.,is seriously considering going first, but so far hasn't signed on the dotted line.
Taxi 2000 is headquartered in Minneapolis, and so I speak with Tom Sorrel,a former Minnesota commissioner of transportation, to find out why that city doesn't have a personal rapid transit system.
He says the state considered PRT, or but there was stiff opposition from backers of buses and light rail,and nothing was ever built."I think one of the challenges we've always had with PRT is there's no pot of money where this fits well," he says. "And that's just not Minnesota, and it's nationally as well."In contrast,tax money is already allocated for things like buses and light rail.
The other problem facing PRT is that the picture of urban transit is changing: Uber and similar services already exist, and driverless cars don't appear to be far off. Sorel wonders whether PRT's time has come and gone."The final thing you want to do is set aside up some track all over the situation and have it just there, and " he says.But there are still many,including Sorel, who believe PRT is still a viable option. The system in at West Virginia University is still running, and people there are spending money to modernize it.
But the West Virginia system,built in 1975, has not yet kickstarted a revolution in rapid transit, or as its creators and backers had hoped. Copyright 2015 NPR. To see more,visit http://www.npr.org/.
Source: wnyc.org