Elements of Highway Design Highway Design SafetyEfficiency.

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Presentation transcript:

Elements of Highway Design Highway Design SafetyEfficiency

Relating Highway Design to Safety

Relating Highway Design to Efficiency

The Tacoma Narrows

The Design Process Current efficiency Design constraints Create new design Determine cost of improved design Evaluate efficiency of new design If not acceptable  modify design

The Tacoma Narrows Design Concept Performance  congested speed Problem  not enough capacity Basic solution  add more lanes How many lanes? How much will it cost? How will we fund it?

Tacoma Narrows Toll Facility