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Related Articles


Highway Superelevation

Highway Superelevation

Highway Superelevation

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!

RE: Highway Superelevation

how about drainage problems on super elevated freeways

RE: Highway Superelevation

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

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

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.

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