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| Highway Statistics 2005 | OHPI > Highway Statistics > 2005 > Roadway Extent, Characteristics, and Performance > Table HM-66 |
| OCTOBER 2006 | Table HM-66 |
| STATE | STRUCTURES INCLUDED? | MEASUREMENT WHEELPATH | MEASUREMENT LANE(S) 2/ | HALF CAR/QUARTER CAR | MEASUREMENT DIRECTION 3/ |
|---|---|---|---|---|---|
| Alabama | No | Both | Outside | Quarter-car | Ascending |
| Alaska | |||||
| Arizona | No | Both | Outside | Ascending | |
| Arkansas | |||||
| California | No | Both | Quarter-car | ||
| Colorado | Both | Outside | Both for 4-lane and divided; NB, EB off-system | ||
| Connecticut | Yes | Both | Outside | Quarter-car | Both; NB, EB Ascending |
| Delaware | Both | Outside (mostly) | Quarter-car | Ascending | |
| Dist. of Columbia | |||||
| Florida | No | Both | Outside (mostly) | Quarter-car | One direction for total system |
| Georgia | No | Both | Outside | Half-car | |
| Hawaii | Yes | Both | Outside | Quarter-car | Ascending; Both for divided |
| Idaho | Yes | Right | Outside | Quarter-car | Varies; Both for divided |
| Illinois | No | Both | Outside (mostly) | Quarter-car | SB, EB; Both for divided |
| Indiana | |||||
| Iowa | No | Both | Quarter-car | Both for divided; NB, EB other | |
| Kansas | Right | Varies | |||
| Kentucky | |||||
| Louisiana | No | Both | Outside | Ascending | |
| Maine | Yes | Both | Outside | Half-car | Varies |
| Maryland | Yes | Both | Outside | ||
| Massachusetts | No | Both | Outside | Half-car | Both for divided |
| Michigan | |||||
| Minnesota | Yes | Both | Outside | Quarter-car | Both |
| Mississippi | Yes | Both | Outside | Quarter-car | NB, EB; Both for divided |
| Missouri | |||||
| Montana | Yes | Both | Outside | Quarter-car | Ascending |
| Nebraska | Yes | Right | Outside | Quarter-car | Both for 4-lane; varies for 2-lane |
| Nevada | |||||
| New Hampshire | |||||
| New Jersey | Yes | Both | Outside | Half-car | Both; varies |
| New Mexico | No | Both | Outside | Quarter-car | Both for divided; Ascending 2-lane/way |
| New York | No | Both | Outside (mostly) | Quarter-car | Both for Interstate; NB, EB other mostly |
| North Carolina | |||||
| North Dakota | Yes | Both | Outside | Quarter-car | Both for 4-lane; varies for 2-lane |
| Ohio | No | Both | Outside | Quarter-car | Both for divided; varies for other |
| Oklahoma | |||||
| Oregon | No | Both | Outside | Quarter-car | Ascending for Interstate; varies for other |
| Pennsylvania | No | Both | Outside | Quarter-car | NB, EB; Both for divided |
| Rhode Island | Yes | Quarter-car | |||
| South Carolina | Outside | ||||
| South Dakota | Yes | Both | Outside | Quarter-car | All; outside lanes for divided |
| Tennessee | No | Both | Outside | Quarter-car | Both for Interstate; Ascending for other |
| Texas | Yes | Both | Varies | Quarter-car | Varies |
| Utah | No | Both | Outside | Quarter-car | Both for Interstate and divided; consistent for other |
| Vermont | No | Right | Outside | Quarter-car | Ascending |
| Virginia | |||||
| Washington | No | Both | Outside | Quarter-car | Both for divided; varies for other |
| West Virginia | No | Both | Outside | Quarter-car | NB, EB |
| Wisconsin | Yes | Left | Outside | Quarter-car | NB, EB |
| Wyoming | Yes | Both | Outside | Half-car | Ascending |
| Puerto Rico | Both | Half-car |
1/ Information in this table is intended to represent State data collection and HPMS reporting practices as submitted to FHWA and may not necessarily reflect practices used for other State purposes.
2/ The outside lane is typically the rightmost lane on multi-lane facilities in the direction of travel.
3/ NB=Northbound, SB=Southbound, EB=Eastbound, WB=Westbound. Ascending=direction of increasing or ascending milepoints.
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