Highway Superelevation Highway Superelevation CivilShepp (Civil/Environmental) (OP) 9 Mar 16 01:31 Currently a College student in Ontario, Canada Looking for some ideas for a technical project My proposed topic is on superelevation Any ideas for a scope of study would be greatly appreciated! Thanks RE: Highway Superelevation cvg (Civil/Environmental) 9 Mar 16 14:12 how about drainage problems on super elevated freeways RE: Highway Superelevation eea (Civil/Environmental) 10 Mar 16 09:33 Sticking with the Super-elevation theme: - Comparing the physics' equations against AASHTO or DOT / Ministry of Transportation guidelines would be a good start. - Effects of loss of coefficient of friction, i.e. icing on the roadway and impacts on travel speed. - Review of design vehicle (PV) used for standard guidelines compared to current vehicles, trend towards hybrids, other changing trends - Tire contact area, smaller versus larger diameter tire, wider versus narrower tread - Review guidelines for physical pavement transitions from normal crown to super elevation, 1/3 on 2/3 off, run-out lengths, ... RE: Highway Superelevation BUGGAR (Structural) 10 Mar 16 14:48 How about reverse superelevation of train tracks to counteract the inward vector resulting from tractive forces on the couplers between rail cars? RE: Highway Superelevation chicopee (Mechanical) 16 Mar 16 00:40 Taconic State Parkway in New York State has reverse super elevation and it is not a pleasant sensation when you are doing 70 mph and I am sure has been the cause of many accidents over the yearss.