Whats with the permanent detour signs in PA and MI?
PA has installed permanent detour signs at its freeway offramps across the state in order to have a permanent alternate route for traffic in case a freeway becomes impassible due to an accident or weather conditions. These detours are color-coded depending on the direction of the detour (red, green, blue, black). For more information, got to http://www.dot.state.pa.us/penndot/districts/district4.nsf/001010-12-color-detours.htm , and for illustrations, go to http://www.pahighways.com/misc/pamutcd.html#guide . MI has placed similar signage along its Interstates, primarily in the Southwest Lower Peninsula, in the form of Emergency Interstate routings, signified by an Interstate assembly with a black-on-orange “EMERGENCY” plaque on top (see http://www.roadfan.com/michrdph.html#ei94 ). Feb 9, 2005 10.
PA has installed permanent detour signs at its freeway offramps across the state in order to have a permanent alternate route for traffic in case a freeway becomes impassible due to an accident or weather conditions. These detours are color-coded depending on the direction of the detour (red, green, blue, black). For more information, got to http://www.dot.state.pa.us/penndot/districts/district4.nsf/001010-12-color-detours.htm , and for illustrations, go to http://www.pahighways.com/misc/pamutcd.html#guide . MI has placed similar signage along its highways, primarily in the Western and Southern Lower Peninsula, in the form of Emergency Interstate and Emergency U.S. routings, signified by an assembly with a black-on-orange “EMERGENCY” plaque on top (see http://www.roadfan.com/michrdph.html#ei94 and http://www.michiganhighways.org/indepth/US-31Freeway_Ottawa.html ). Mar 8, 2007 10.10 Q: What does “HM” mean? A: It stands for “Hazardous Materials”. There are signs which show its allowance
PA has installed permanent detour signs at its freeway offramps across the state in order to have a permanent alternate route for traffic in case a freeway becomes impassible due to an accident or weather conditions. These detours are color-coded depending on the direction of the detour (red, green, blue, black). For more information, got to http://www.dot.state.pa.us/penndot/districts/district4.nsf/001010-12-color-detours.htm , and for illustrations, go to http://www.pahighways.com/misc/pamutcd.html#guide .. MI has placed similar signage along its highways, primarily in the Western and Southern Lower Peninsula, in the form of Emergency Interstate and Emergency U.S. routings, signified by an assembly with a black-on-orange “EMERGENCY” plaque on top (see http://www.roadfan.com/michrdph.html#ei94 and http://www.michiganhighways.org/indepth/US-31Freeway_Ottawa.html ). Mar 8, 2007 10.
