Archived posting to the Leica Users Group, 2003/03/09
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 05:49 PM 3/9/03 -0800, Martin Howard wrote: > >I think these are both German inventions, with the advent of the first >Autobahn. The separation of traffic flows via a median, an overtake >lane (a concept lost on most US drivers), and on and off ramps are all >Autobahn firsts, AFAIK, although in the US, the concept was extended >upon (particularly through spaghetti interchanges) when the Interstate >system was built. Martin The Pennsylvania Turnpike was the first divided-lane high-speed road ever built, dating from a decade before the Autobahns were conceived. This road came equipped was all of the attributes you discuss. By the time the first Autobahn was constructed, there were probably 25,000 miles of such roads in the US. Marc msmall@infi.net FAX: +276/343-7315 Cha robh bąs fir gun ghrąs fir! - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html