Vehicle Turning Path

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Vehicle Turning Path

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Passenger Turning Path - 180°
Plan drawing with dimensions for the radius required for a passenger vehicle to make a 180° turn

The 180° turning path of a passenger vehicle measures the minimum possible turning radius for use when designing spaces for u-turns or turn-arounds within streets, parking lots, drop-offs, or service areas. Measuring the inner and outer radii of the 180° turn, a minimum inner radius of 14’5” | 4.39 m and minimum outer radius between 24’-25’6” | 7.31-7.77 m should be provided throughout the turn. Turning paths can use either curb-to-curb or wall-to-wall measurements based on whether the turning circles are calculated based on the outer tire or the outer front overhang. Additional clearances should be provided whenever possible to accommodate a larger variety of car sizes and driver abilities.

The 180° turning path of a passenger vehicle measures the minimum possible turning radius for u-turns. Measuring the inner and outer radii of the 180° turn, a minimum inner radius of 14’5” | 4.39 m and minimum outer radius between 24’-25’6” | 7.31-7.77 m should be provided throughout the turn.

Passenger Turning Path - 180°
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Outer Radius: 24’-25’6” | 7.31-7.77 m
Inner Radius: 14’5” | 4.39 m

Vehicle Wheelbase: 11’ | 3.35 m
Vehicle Length: 19’ | 5.79 m
Vehicle Width: 7’ | 2.13 m

Drawings include:
Passenger Vehicle Turning Path 180° plan

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Single-Unit Truck | Bus - 20' WB
Dimensioned drawing showing the requirements for multiple turning angles of a Single Unit Truck or Bus with 20' wheelbase

The turning path of a Single-Unit Truck or Bus measures the minimum possible turning radius necessary for performing a u-turn in a vehicle with a 20’ | 6.1 m wheelbase. Measuring the inner and outer radii of the 180° turn, a minimum inner radius of 28’4” | 8.64 m and minimum outer radius between 42’-43.5’ | 12.8-13.26 m should be provided for single-unit trucks and buses.

The turning path of a Single-Unit Truck or Bus measures the minimum possible turning radius necessary for a vehicle with a 20’ | 6.1 m wheelbase. Measuring the inner and outer radii of the 180° turn, an inner radius of 28’4” | 8.64 m and outer radius of 42’-43.5’ | 12.8-13.26 m should be provided.

Single-Unit Truck | Bus - 20' WB
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Outer Radius: 42’-43.5’ | 12.8-13.26 m
Inner Radius: 28’4” | 8.64 m

Vehicle Wheelbase: 20’ | 6.1 m
Vehicle Length: 30’ | 9.15 m
Vehicle Width: 8’ | 2.44 m

Drawings include:
Single Unit Truck | Buses (20' Wheelbase) Turning Paths plan

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Semi-Trailer Truck - 40' WB
Dimensioned plan drawing of the required layout and turning radius for a Semi-Trailer Truck with a 40' wheelbase

The turning path of a Medium-sized Semi Truck measures the minimum possible turning radius necessary for performing a u-turn in a vehicle with a 40’ | 12.2 m wheelbase. Measuring the inner and outer radii of the 180° turn, a minimum inner radius of 19’4” | 5.9 m and minimum outer radius between 40’-40’10” | 12.2-12.4 m should be provided for medium-sized semi trucks.

The turning path of a Medium-sized Semi Truck measures the minimum possible turning radius necessary for a vehicle with a 40’ | 12.2 m wheelbase. Measuring the inner and outer radii of the 180° turn, an inner radius of 19’4” | 5.9 m and outer radius of 40’-40’10” | 12.2-12.4 m should be provided.

Semi-Trailer Truck - 40' WB
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Outer Radius: 40’-40’10” | 12.2-12.4 m
Inner Radius: 19’4” | 5.9 m

Vehicle Wheelbase: 40’ | 12.2 m
Vehicle Length: 45’6” | 13.87 m
Vehicle Width: 8’ | 2.44 m

Drawings include:
Semi-Trailer Truck (40' Wheelbase) Turning Paths plan

Details & Downloads

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Passenger Turning Path - 90°
Dimensioned drawing of measuring the turning path and radius for a passenger vehicle to make a 90° turn

The 90° turning path of a passenger vehicle measures the minimum possible turning radius needed when designing parking, loading, and drop-off spaces. Measuring the inner and outer radii of the 90° turn, a minimum inner radius of 11’6” | 3.5 m and minimum outer radius of 19’2” | 5.85 m should be provided. Though the turning path requires a width of only 7’6” | 2.3 m, additional clearances should be provided whenever possible to accommodate a larger variety of car sizes and driver abilities.

The 90° turning path of a passenger vehicle measures the minimum possible turning radius needed for parking, loading, and drop-off spaces. Measuring the inner and outer radii of the 90° turn, a minimum inner radius of 11’6” | 3.5 m and minimum outer radius of 19’2” | 5.85 m should be provided.

Passenger Turning Path - 90°
Height:
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Outer Radius: 19’2” | 5.85 m
Inner Radius: 11’6” | 3.5 m
Path Width: 7’6” | 2.3 m minimum

Vehicle Wheelbase: 8’10” | 2.7 m
Vehicle Length: 15’6” | 4.74 m
Vehicle Width: 5’9” | 1.76 m

Drawings include:
Passenger Vehicle 90° Turning Path plan

Details & Downloads

Downloads

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