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Comparisons of 3 Transit Systems for a Hypothetical City
 
Lower costs translates into greater coverage and access
Get On Board!
Personal Rapid Transit
Why PRT is Less Expensive, Part II

Get On Board! PRT
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©2001 Get On Board!PRT



Part I     Part II      Part III


Squaretown
Area: 64 square miles (8 miles x 8 miles)

Population: 384,000

Avg. population density: 6,000/sq. mi. (Seattle=6,193/sq mi --US Census 1990)

Key
LRT line w/stn Monorail line w/stn PRT network w/stops

Option I: Light Rail
Track:8 miles
Stations:7    Station cost: $4 million approx. Total station cost: $28 million approx.
Tunnels:1
Vehicles:25    Vehicle cost: $2 million. Total vehicle cost $50 million
Cost:$1.2 billion (Based on current Seattle Central Link estimates)
Land area within walking distance (0.25 mi) of stations:2.1%, or 1.34 sq. mi.

Population within this area: 8,064

Costs not included: land, labor, A+E, station-area development, station-area parking garages, feeder-transit system. Fun Fact: If cost per stall is $15,000, just one 500-stall parking garage is $7.5 million.

Option II: Monorail
Track:22.6 miles
Elevated Stations:13    Station cost: triple LRT?
Tunnels:0
Vehicles:50
Cost:$2.26 billion (Based on $100 million/mi inclusive-- Seattle ETC project estimate 1/10/02)
Land area within walking distance (0.25 mi) of stations:3.9%, or 2.5 sq. mi.

Population within this area: 15,976

Costs not included: land, labor, A+E, station-area development, station-area parking garages, feeder-transit system

Q: Oh. My. God. I don't want PRT going down every street.
A: It's not on every street, the guideway spacing in this example is a half-mile.

Q: But it'll be an eyesore. All that clutter!
A: Taxi 2000 guideway is 3 ft thick, ULTra is half that; both ride atop slender pylons. Can you pick out something of that size from a half-mile away? Look here for a photo of slim guideway from 200 meters away, about an eighth of a mile. Keep in mind that pylons and guideway shells can be colored and given architectural details. Learn more

Option III: Personal Rapid Transit
Track:182 miles @$5 million/mi = $910 million
Elevated Stops:218 @$100,000 each = $21.8 million, Footnote A
Tunnels:0
Vehicles:5,000 @$10,000 each = $50 million, Footnote B
Cost:$981.8 million
Land area within walking distance (0.25 mi) of stations:66.8%, or 42.8 sq. mi.

Population within this area: 256,800

Learn more
Costs not included: land, labor, A+E

Footnote A This is likely overstated. One would expect most stops would have only single berths and thus be smaller and slightly cheaper; medium-sized business districts would have the usual 3-berth stops, while major activity centers in downtowns, colleges, stadiums, etc. would have more berths. However, the idea is that some major property owners (hotel chains, mall owners, etc.) will contribute to station construction because of the advantage of facilitating travel to their establishments.
Footnote B Equal to about only 25 light rail cars.



Part I     Part II      Part III