Hoskir at 18:38, 16 December 2024

2024-12-16T18:38:11Z

← Older revision		Revision as of 13:38, 16 December 2024
Line 1:		Line 1:
	[[image:940.2 Spacing ~~Between~~ Interchanges.jpg\|right\|400px]]		[[image:940.2 Spacing between Interchanges.jpg\|right\|400px]]

Smithk: article construction

2007-05-30T18:28:14Z

article construction

New page

[[image:940.2 Spacing Between Interchanges.jpg|right|400px]]

Adequate spacing is needed between grade-separated interchanges on high-speed roads to allow for safe and efficient weaving or changing of lanes for traffic that is entering and exiting. Generally, speeds are higher in rural areas so interchanges must be spaced farther apart there than in urban areas.

Interchange spacing decisions are to be supported by an operational and level of traffic service analysis. Connectivity, speed and safety are also to be considered. In highly dense urban central city areas, the configuration of the local street system may require a closer interchange spacing to maintain connections and mobility.

[[image:940.2.gif|525px|center|thumb|<center>'''Interchange Clearance Situations, indicated as Distance "A"'''</center>]]

{| border="1" class="wikitable" style="margin: 1em auto 1em auto"
|+ '''''Table 940.2 Interchange Clearance Situations'''''
! style="background:#BEBEBE"|Roadway Classification !! style="background:#BEBEBE"|In Current and Projected Urban Areas!!style="background:#BEBEBE"| In Rural Areas
|-
! Major
| 2 - 3 miles* || 2 - 5 miles
|-
!Minor
| Generally Not Applicable || Generally Not Applicable
|-
|colspan="3"|* Spacing less than two miles in urban areas may be considered, when analysis indicates the lesser spacing is acceptable. However, consider all other options before spacing is reduced.
|}

Spacing greater than the distances shown is advantageous for safety and operations. Distances shown are between the centers of interchanges.

[[category:940 Access Management|940.02]]

940.2 Spacing between Interchanges - Revision history

Hoskir at 18:38, 16 December 2024

Smithk: article construction