What is the minimum horizontal curve radius for a design speed of 60 km/h accord

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Question: What is the minimum horizontal curve radius for a design speed of 60 km/h according to AASHTO guidelines?

Options:

Correct Answer: 150 m

Solution:

AASHTO guidelines recommend a minimum horizontal curve radius of 100 m for a design speed of 60 km/h.

What is the minimum horizontal curve radius for a design speed of 60 km/h according to AASHTO guidelines?

What is the minimum horizontal curve radius for a design speed of 60 km/h according to AASHTO guidelines?

Step 1: Understand that AASHTO stands for the American Association of State Highway and Transportation Officials, which provides guidelines for road design.
Step 2: Know that the design speed is the speed at which a road is intended to be driven safely.
Step 3: Recognize that horizontal curves are the bends in the road that vehicles must navigate.
Step 4: Look up the AASHTO guidelines for the minimum horizontal curve radius based on the design speed.
Step 5: Find that for a design speed of 60 km/h, the AASHTO guidelines specify a minimum horizontal curve radius of 100 meters.

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