User:Hawkeygoal/IL Pages/IL Dirt Roads (2016 06) View history

Revision as of 13:38, 14 December 2016

Overview

The goal of this page update is to clarify handling of the dirt road type in Illinois by revising the Special roads section of the Illinois wiki.

This information is under consideration for the Illinois state wiki. It should not be considered official guidance.

The recent correction of the "dirt" road type to "off-road / not maintained," we are advancing this modification to the Illinois guidance on dirt and gravel roads within the state. This guidance is intended to codify what falls into the "not maintained" category while providing for future inclusion of the, as yet unimplemented, "unpaved" checkbox.

Content

Non-Drivable Roads

| | | | | Walking Trails | | | | | and | | | | | Pedestrian Boardwalks | | | | | are not added to the map in Illinois. Outside some special exceptions, these road types do not add to the routing function of the application.

Special exceptions may be made with the approval by State Managers. For example, a | | | | | Boardwalk | | | | | may be used to support house numbers in situations where they are not assigned to drivable road types. This use must be approved by a State Manager (refer to Area Managers table).

Dirt Roads

Illinois follows this specific guidance on the use of Off-road / Not maintained in the state. This supplements the guidance in road types.

Unpaved roads may or may not be classified on IDOT Functional Classification maps. Unpaved roads classified in one of the arterial, collector classes will be mapped as specified in road types guidance. Local and unclassified roads will be mapped as shown in the following table:

		Highway System & Road Surface
		County Highway^[a]	Paved Street	Gravel Street	Narrow Gravel Street^[b]	Soil Street
	examples	CH-14	Main St	Side St	Farm Dr	Farm Ln
Functional Classification	Major Collector	PS	PS	PS	N/M	N/M
	Minor Collector	PS	PS	PS	N/M	N/M
	Local	PS	Street	Street	N/M	N/M
	Unclassified	PS	Street	N/M	N/M	N/M

^a A road in a county highway system always follows this column regardless of road surface.
^b A narrow gravel road is defined as one less than 16.5 feet from edge to edge. This is less than the width of two FHWA minimum lanes. Non-farm vehicles approaching from opposite directions would likely need to leave the roadway to pass.

Legend
PS	Primary Street
Street	Street
N/M	Off-road / Not maintained

To determine if a road falls into the "narrow" or "two-track" categories, measure the distance from edge to edge using by creating a temporary, un-saved, segment. Create the segment positioning the mouse cursor at the road edge at each side. Use the WME Meausurement Tool in WME Toolbox to measure the length of the segment without saving the temporary segment.

Discussion

This proposal is still being drafted prior to open discussion.

[a]

[b]

@@ Line 7: / Line 7: @@
 |}
+The recent correction of the "dirt" road type to "off-road / not maintained," we are advancing this modification to the Illinois guidance on dirt and gravel roads within the state. This guidance is intended to codify what falls into the "not maintained" category while providing for future inclusion of the, as yet unimplemented, "unpaved" checkbox.
 <!--
 The current wiki guidance on this topic can be found in [[Illinois#Major_roads|this section]].
@@ Line 24: / Line 25: @@
 ===== Dirt Roads =====
-Illinois follows this specific guidance on the use of {{Dirt}} in the state. This supplements the guidance in [[Road_Types_(USA)|road types]].
+Illinois follows this specific guidance on the use of {{Dirt|Off-road / Not maintained }} in the state. This supplements the guidance in [[Road_Types_(USA)|road types]].
 Unpaved roads may or may not be classified on IDOT Functional Classification maps. Unpaved roads classified in one of the arterial, collector classes will be mapped as specified in [[Road_Types_(USA)|road types]] guidance. Local and unclassified roads will be mapped as shown in the following table:
@@ Line 38: / Line 39: @@
 !Paved<br>Street
 !Gravel<br>Street
-!Narrow 2-way<br>Gravel Street{{ref label|b|b}}
+!Narrow<br>Gravel Street{{ref label|b|b}}
 !Soil<br>Street
 |-
@@ Line 50: / Line 51: @@
 |-
 ! rowspan="4" | Functional<br>Classification
-|| Major Collector||{{Primary Street|PS}}||{{Primary Street|PS}}||{{Primary Street|PS}}||{{Dirt|Dirt}}||{{Dirt|Dirt}}
+|| Major Collector||{{Primary Street|PS}}||{{Primary Street|PS}}||{{Primary Street|PS}}||{{Dirt|N/M}}||{{Dirt|N/M}}
 |-
-|| Minor Collector||{{Primary Street|PS}}||{{Primary Street|PS}}||{{Primary Street|PS}}||{{Dirt|Dirt}}||{{Dirt|Dirt}}
+|| Minor Collector||{{Primary Street|PS}}||{{Primary Street|PS}}||{{Primary Street|PS}}||{{Dirt|N/M}}||{{Dirt|N/M}}
 |-
-|| Local||{{Primary Street|PS}}||{{Street}}||{{Street}}||{{Dirt|Dirt}}||{{Dirt|Dirt}}
+|| Local||{{Primary Street|PS}}||{{Street}}||{{Street}}||{{Dirt|N/M}}||{{Dirt|N/M}}
 |-
-|| Unclassified||{{Primary Street|PS}}||{{Street}}||{{Dirt|Dirt}}||{{Dirt|Dirt}}||{{Dirt|Dirt}}
+|| Unclassified||{{Primary Street|PS}}||{{Street}}||{{Dirt|N/M}}||{{Dirt|N/M}}||{{Dirt|N/M}}
 |}
 {{note|a|a}} A road in a county highway system always follows this column regardless of road surface.
 <br />
-{{note|b|b}} A narrow two-way gravel road is defined as one less than 16.5 feet from edge to edge. This is less than the width of two FHWA minimum lanes. In all likelihood non-farm vehicles approaching from opposite directions would need to leave the roadway to pass.
+{{note|b|b}} A narrow gravel road is defined as one less than 16.5 feet from edge to edge. This is less than the width of two FHWA minimum lanes. Non-farm vehicles approaching from opposite directions would likely need to leave the roadway to pass.<br />
+<br />
 {| border="1" align=center style="border-collapse:collapse; text-align:center;"
@@ Line 70: / Line 71: @@
 |{{Street}}||{{Street}}
 |-
-|{{Dirt|Dirt}}||{{Dirt}}
+|{{Dirt|N/M}}||{{Dirt|Off-road / Not maintained}}
 |}
 </div>
 <br />
-To determine if a road falls into the "narrow two-way gravel road" road surface, measure the distance from edge to edge using by creating a temporary segment. Create the segment positioning the mouse cursor at the road edge at each side. Use the ''WME Meausurement Tool'' to measure the length of the segment without saving the temporary segment.
+To determine if a road falls into the "narrow" or "two-track" categories, measure the distance from edge to edge using by creating a temporary, un-saved, segment. Create the segment positioning the mouse cursor at the road edge at each side. Use the [[Scripts/WME Toolbox/Measurement Tool|WME Meausurement Tool]] in [[Scripts/WME Toolbox|WME Toolbox]] to measure the length of the segment without saving the temporary segment.
+<!--
-It is important to remember that the Waze [[Routing server|routing server]] will only consider lower-priority roads (Primary Street, Street, Dirt) near the origin/destination (10km or 6.2mi).
+It is important to remember that the Waze [[Routing server|routing server]] will only consider lower-priority roads (Primary Street, Street, Not Maintained) near the origin/destination.
+-->
 == Discussion ==