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Model Inventory of Roadway Elements – MIRE, Version 1.0

33. Inside Through Lane Width

Definition: Predominant lane width of all inside through lanes, not including outside through lane (see Element 32. Outside Through Lane Width). For a two-lane road, leave this element blank.

Attributes: Feet

See Figures 1b-1c depending on number of lanes and direction of inventory.

Priority: Critical

HPMS/Tool Requirements: HSM/IHSDM (Required), SafetyAnalyst (Optional)

Illustration shows width elements for a two-lane roadway cross section, starting from the right side -- right sideslope, right unpaved shoulder, right paved shoulder,  travel lane (same in each direction), left paved shoulder, left unpaved shoulder, and left sideslope.

Figure 1a. Illustration of Cross Section, Two-Lane Roadway.

Illustration shows width elements for a multilane divided roadway cross section that is inventoried in both directions, starting from the right side -- right sideslope, right total  shoulder, right paved shoulder, outside travel lane, inside travel lane,  left total shoulder, left paved shoulder, and left sideslope.

Figure 1b. Illustration of Cross Section, Multilane Divided Roadway Inventoried in Two Directions (each direction inventoried separately).

Illustration shows  width elements for a multilane divided roadway cross section that is inventoried in a single direction, starting from the right side -- right sideslope, right total shoulder, right paved shoulder,right outside travel lane, right inside travel lane, median  paved shoulder, median sideslope, and median (elements are repeated inversely on the other side of the roadway).

Figure 1.c. Illustration of Cross Section, Multilane Divided Roadway Inventoried in One Direction (both directions inventoried together).

Page last modified on October 15, 2014.
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