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Model Inventory of Roadway Elements – MIRE, Version 1.0

188. Ramp Acceleration Lane Length

Definition: Length of acceleration lane, not including taper. For tapered ramps, this would be measured from point of tangency of the last ramp curve to the point where the ramp lane width becomes less than 12 feet. For parallel ramps, this would be measured from nose of painted gore to beginning of taper.

Attributes: Feet

See Figure 20 for additional detail.

Priority: Critical

HPMS/Tool Requirements: None

Illustration shows two types of Acceleration Lanes: Tapered Design; and Parallel Design

Figure 20. Illustration of Acceleration Lane Length for Tapered and Parallel Designs.

Page last modified on October 15, 2014.
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