What is the minimum sight distance to the left for a passenger car traveling at a speed of 20 mph?

90 feet
Table 4.2 lists the minimum recommended sight distances for specific design speeds. For example, if a vehicle is traveling 20 mph, a sight distance of 90 feet is the minimum recommended stopping sight distance.

What is the sight distance rule for distance?

The sight distance for a stopped vehicle, at an intersection junction, should be enough for the vehicle to view conflicting vehicles/objects approaching on the adjacent/crossing roadway to proceed on or through the intersection without conflict.

What is corner sight distance?

9. CORNER SIGHT DISTANCE IS MEASURED FROM A 3.5 FOOT HEIGHT AT THE LOCATION OF THE DRIVER’S EYE ON THE MINOR ROAD, TO A 4.25 FOOT OBJECT HEIGHT IN THE CENTER OF THE NEAREST TRAFFIC LANE OF THE MAJOR ROAD. 10. WHEN AN INTERSECTION IS LOCATED ON A VERTICAL CURVE, A PROFILE OF THE SIGHT LINE SHALL BE PROVIDED.

What is meeting sight distance?

Meeting Sight Distance Distance required to enable the drivers of two vehicles traveling in opposite directions on a two-way road with insufficient width for passing to bring their vehicles to a safe stop after becoming visible to each other.

What is headlight sight distance?

Headlight Sight Distance: It is the distance of the road available under the illumination of head lights of vehicles during night time driving.

What is the minimum sight distance in adverse conditions?

This is about 1 to 1 1/2 blocks. When you are driving in rural areas, look at least 20 to 25 seconds ahead of your vehicle. This is your visual lead time, which provides you with time to respond to hazards ahead of you.

What are the different sight distances?

There are 5 types of sight distances: Overtaking Sight Distance. Intermediate Sight Distance. Head Light Sight Distance. Sight Distance @ intersections.

What do you mean by sight distance?

The distance along the center line of the road at which a driver has visibility of an object, stationary or moving at a specified height above the carriage way is known as sight distance. Sight distance is the length of road visible ahead to the driver at any instance.

What is minimum sight distance?

Stopping or Non-passing Sight Distance : In this case of a summit curve, minimum stopping sight distance is the distance measured along the center line of a road at which a drive whose eye sight is 1.22 m above the road surface can see the top of an object 15 cm high on the road.

What are the types of sight distance?

There are 5 types of sight distances:

• Stopping Sight Distance.
• Overtaking Sight Distance.
• Intermediate Sight Distance.
• Head Light Sight Distance.
• Sight Distance @ intersections.

How much minimum spacing of two vehicles should be if the speed of overtaking vehicle is 96Kmph?

Explanation: The minimum length of the overtaking zone is 3 times of OSD, but desirable is 5 times of OSD. V=80+16=96Kmph. S=16m.

What are the minimum recommended sight distances for specific design speeds?

perception, reaction, and braking time. Table 4.2 lists the minimum recommended sight distances for specific design speeds. For example, if a vehicle is traveling 20 mph, a sight distance of 90 feet is the minimum recommended stopping sight distance.

What is the minimum recommended stopping distance for a vehicle?

specific design speeds. For example, if a vehicle is traveling 20 mph, a sight distance of 90 feet is the minimum recommended stopping sight distance. Note: Distances are from the 2001 AASHTO Green Book and 2001 AASHTO Little Green Book. Distances may change in future versions.

Is passing sight distance applicable to two-lane roads?

Passing sight distance is applicable only in the design of two-lane roadways (including two-way frontage roads) and therefore is presented in Chapter 3, Section 4 under the discussion on Two Lane Rural Highways, and Chapter 4, Section 6 under the discussion on Super 2 Highways .

What is the decision sight distance?

The decision sight distance is the distance traversed while recognizing an object or hazard, plotting an avoidance course, and making the necessary maneuvers. Unlike the stopping sight distance, the decision sight distance is quite complex.