I watched a show the other night on the Science channel featuring Germany's Autobahn.
The producers set up a camera in a Porsche and filmed what it was like to go 212 MPH on the highway...Wow..
It amazed me how that the driver didn't have to slow down for other traffic...I mean, the other drivers actually PAID ATTENTION to the upcoming traffic and moved out of the way!
One of the sad (and slightly cutting) statements was when a German traffic engeneer asked the American traffic engineer if the USA would benifit from such a system.
The American said "I'm afraid that such a highway would never work over there (USA) ...Americans are too busy drinking soda, talking on cell phones, watching tv and other distracting stuff to have such a system"...Ahhh!
An amazing fact is the Autobahn has about 1/2 of the accidents that our Expressways do....that speaks volumes on the American driver.
Interesting Facts:
Outside emergency shoulders and long acceleration and deceleration lanes.
Full grade-separation and access control provided by half cloverleaf interchanges at exits and cloverleafs and directional interchanges at Autobahn crossings. Interchanges are generally well-spaced, sometimes exceeding 30 km between.
4% or lesser grades. Climbing lanes are provided on most steep grades.
Gentle and well-banked curves.
Freeze-resistant concrete or bituminous surface.
Roadbed and surface measuring about 68 cm (27 inches) in thickness.
Our Roads are 1/2 as thick (so we have fix the $%#&# things constantly!)
In addition, Autobahns also feature the following amenities:
Reflector guide posts at 50 meter intervals.
Frequent parking areas, often equipped with toilet facilities.
Extensive and ample service areas featuring gas stations, restaurants, and hotels.
Automated traffic monitoring and electronic signs providing dynamic speed limits and/or advance warning of congestion or fog.
Emergency telephones at 2 km intervals.
Pre-designated detour routes to facilitate emergency closures.
Standardized signage.
Wildlife protection fencing and crossover tunnels.
Maintenance is superb. Crews inspect every meter of the system periodically, and when a fissure or other defect is found, the entire road section is replaced. Signs, barriers, and other features are also well maintained.
Heres a link to a neat site on the Autobahn:
http://home.att.net/~texhwyman/autobahn.htm