Questions tagged [highway-engineering]

Highway engineering covers the design of highways, in particular: layout (vertical and horizontal), surfacing design and drainage

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Effect on pavement by light tracked vehicles with rubber inserts

Is there data available to quantify the effect on pavement by light tracked vehicles with rubber inserts. One example of such a vehicle is the M113 armored personnel carriers shown below.
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Any Idea of This China's "Transparent Concrete"?

I am currently make an attempt to make miniaturized version of this China's solar highway on my garage https://www.youtube.com/watch?v=zK8FvzI3yDA Just so i can re-evaluate the performance However, I ...
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How is a merge left or a merge right chosen?

Recently a certain 2 lane exit ramp changed from merge right to merge left, but the entrance ramp immediately preceding it is merge right. Why was this changed? In a given circumstance, what dictates ...
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How fast can the Shinkansen N700 train take a curve?

As a transit advocate, I'm evaluating an urban freeway corridor for high-speed rail. Given the geometry of the existing highway, the track alignment will be a compromise between train speed and right-...
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How to define the Clothoid Constant in Clothodial Arc ( Spiral Curve)?

Referring to the document here on IfcClothoidalArcSegment2D, we have ClothoidConstant, which is defined as The constant $A$ (not $A^2$), that determines the ...
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Pavement stage construction; reduction of Structual Properties

Which properties of flexible pavement layers are reduced (discounted) in a stage construction design with an overlayed layer? Thickness of stage 1 Layers? Structural Number ? Modulus of Resilience ? ...
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Are there standards or guidance for the placement and location of rest areas on newly constructed or designated U.S. Interstates?

As the highway engineers here may already know, U.S. highway 71 through most of Missouri was recently redesignated as a section of Interstate 49 after the completion of grade separation work at ...
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How far have we developed eco-friendly tyres alternatives?

Considering how bad rubber tires is for environment (Microplastic on tyre - NatGeo), Today tires consist of about 19 percent natural rubber and 24 percent synthetic rubber, which is a plastic polymer....
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Are there any turborotonde / turboplein designs with more than four exits?

For an at-grade intersection of multi-lane roads, the "Turborotonde" (Dutch language Wikipedia article) or "Turboplein" (Dutch language wegenwiki article) is an alternative to the multi-lane ...
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