Design Vehicles

Common Street Types

Neighborhood Transit Street

• Speeds are low to moderate.

Corridor Street

• Increased stop distance and lane width results in higher travel speeds.

Downtown Street

• Speeds are low to moderate with frequent stops.
• Congestion, parking, and standing vehicles are more significant than design speed in determining operating speeds.

Common Street Types

Corridor Street

• Clear rights-of-way accommodates larger capacity vehicles.
• Increased stop distance and lane width results in higher travel speeds. Assign additional width to lane buffers.

Downtown Street

• High-capacity or trunkline routes, especially in dedicated lanes.

Common Street Types

Neighborhood Transit Street

• Low to moderate speeds with frequent stops, typically 20 mph or less.
• Smaller length and width than LRVs allows operation in more constrained streets

Corridor Street

• When operated on transitways or dedicated lanes, modern streetcars can be functionally similar to LRT, operating at up to 30–35 mph in some cases.
• Provide comfortable stations, especially for center-running streetcars.

Downtown Street

• May operate in mixed traffic or shared street conditions.
• Prevent blockage by stationary vehicles, including overhanging parked vehicles.

Common Street Types

Corridor Street

• Longer stop spacing, and often in separated transitway, allows for increased speed, potentially 30–35 mph.

Downtown LRT Street

• Modern light rail may transition from exclusive guideway to street-grade or mixed traffic conditions as it enters downtown.