Where are there horizontal traffic signals?
Places where horizontal traffic signals are standard are NM, QC, TX, and WI, with NJ having recently adopted vertical signals. These are also located in places where an obstruction might obscure a vertical assembly, and are also used in various business districts for aesthetic purposes. http://mutcd.fhwa.dot.gov/HTM/2003r1/part4/part4d.htm#section4D16 describes their set-up. Oct 16, 2003 11.11 Ramp meters Ramp meters are traffic signals placed along freeway entrance ramps to control ramp traffic in order to reduce congestion on the freeways to which the ramps lead. For more information, see http://mutcd.fhwa.dot.gov/HTM/2003r1/part4/part4h.htm or http://www.ajfroggie.com/roads/rampmeter.htm (the latter includes a list of places which use them). Feb 16, 2004 11.12 Q: Why can’t I see the signal indication? A: If a signal is used where roads intersect at a sharp angle, or there are multiple sets of signals with different cycles in multiple succession, fresnel lenses, which direct light in
Places where horizontal traffic signals are standard are NM, QC, TX, and WI, with NJ having recently adopted vertical signals. These are also located in places where an obstruction might obscure a vertical assembly, and are also used in various business districts for aesthetic purposes. http://mutcd.fhwa.dot.gov/HTM/2003r1/part4/part4d.htm#section4D16 describes their set-up. Oct 16, 2003 11.11 Ramp meters Ramp meters are traffic signals placed along freeway entrance ramps to control ramp traffic in order to reduce congestion on the freeways to which the ramps lead. For more information, see http://mutcd.fhwa.dot.gov/HTM/2003r1/part4/part4h.htm or http://www.ajfroggie.com/roads/rampmeter.htm (the latter includes a list of places which use them). Feb 16, 2004 11.
