< MUTCD
MUTCD/CW
Series CW of the MUTCD is for warning signs in construction zones. Whereas a regulatory sign appears the same inside and outside a construction zone, a warning sign has an orange background in a construction zone instead of the usual yellow. Otherwise, most of Series CW is identical to Series W. The tables below show only the signs that are unique to Series CW.
In general, OpenStreetMap only maps long-term closures and construction sites. For routing purposes, short-term construction is more reliably and efficiently tracked in incident management systems along with real-time traffic congestion data.
W1: Curves and Turns
| Sign and/or plaque | Designation | Name | Tags | Notes |
|---|---|---|---|---|
| CW1-4b | Reverse Curve (2 lanes) | hazard=curves curves=serpentine change=no | Speculative | |
| CW1-4c | Reverse Curve (3 or more lanes) | hazard=curves curves=serpentine change=no | Speculative |
W5: Road Width Restrictions
| Sign or plaque | Designation | Name | Tags | Notes |
|---|---|---|---|---|
| CW5-4 | Ramp Narrows | hazard=ramp_narrows narrow=yes ahead | Speculative |
W6: Divided Highways
| Sign or plaque | Designation | Name | Tags | Notes |
|---|---|---|---|---|
| CW6-4 | Two-Way Traffic | oneway=no |
W8: Pavement and Roadway Conditions
| Sign or plaque | Designation | Name | Tags | Notes |
|---|---|---|---|---|
| CW8-24 | Steel Plate Ahead | surface=metal ahead |
W9: Lane Transitions
| Sign or plaque | Designation | Name | Tags | Notes |
|---|---|---|---|---|
| CW9-3 | Center Lane Closed Ahead | access:lanes=|no| |
W13: Advisory Speeds
| Sign or plaque | Designation | Name | Tags | Notes |
|---|---|---|---|---|
| CW9-3 | Center Lane Closed Ahead | access:both_ways=no | ||
| File:MUTCD CW9-4P.svg | CW9-4P | On Ramp (plaque) | N/A |
W20: Work Zones
| Sign or plaque | Designation | Name | Tags | Notes |
|---|---|---|---|---|
| CW20-2 | Detour Advance | ? | ||
| File:MUTCD CW20-3.svg | CW20-3 | Road Closed Advance | access=no ahead | |
| CW20-4 | One Lane Road Advance | lanes=1 1,000 feet ahead | ||
| CW20-5 | Lane(s) Closed | access:lanes=|no | ||
| CW20-5a | Lane(s) Closed (with distance) | access:lanes=|no|no | ||
| CW20-7 | Flagger (symbol) | supervised=yes | ||
| File:MUTCD CW20-7a.svg | CW20-7a | Flagger | supervised=yes | |
| File:MUTCD CW20-8.svg | CW20-8 | Slow (on Stop/Slow Paddle) | ? |
W21: Road Work
| Sign or plaque | Designation | Name | Tags | Notes |
|---|---|---|---|---|
| CW21-1 | Workers | hazard=roadworks | ||
| CW21-1a | Workers | hazard=roadworks | ||
| CW21-2 | Fresh Oil (Tar) | surface=asphalt smoothness=excellent | ||
| CW21-3 | Road Machinery Ahead | N/A | ||
| CW21-4 | Slow Moving Vehicle | N/A | ||
| CW21-5 | Shoulder Work | ? | ||
| CW21-5a | Shoulder Closed | shoulder:right:access=no | ||
| CW21-5b | Shoulder Closed (with distance) | shoulder:right:access=no 1,000 feet ahead | ||
| CW21-6 | Survey Crew | N/A | ||
| CW21-7 | Utility Work Ahead | N/A | ||
| CW21-8 | Mowing Ahead | N/A |
W22: Blasting Zones
| Sign or plaque | Designation | Name | Tags | Notes |
|---|---|---|---|---|
| CW22-1 | Blasting Zone Ahead | N/A | ||
| CW22-2 | Turn Off 2-Way Radio and Cell Phone | ? | ||
| CW22-3 | End Blasting Zone | N/A |
W23: Slow Traffic
| Sign or plaque | Designation | Name | Tags | Notes |
|---|---|---|---|---|
| CW23-1 | Slow Traffic Ahead | ? | ||
| CW23-2 | New Traffic Pattern Ahead | ? |
W24: Double Reverse Curves
| Sign or plaque | Designation | Name | Tags | Notes |
|---|---|---|---|---|
| CW24-1 | Double Reverse Curve (1 lane) | hazard=curves curves=double_reverse lanes=1 | Speculative | |
| CW24-1a | Double Reverse Curve (2 lanes) | hazard=curves curves=double_reverse lanes=2 change=no | Speculative | |
| CW24-1b | Double Reverse Curve (3 lanes) | hazard=curves curves=double_reverse lanes=2 change=no | Speculative | |
| CW24-1cP | All Lanes | hazard=curves curves=double_reverse lanes=* change=no | Speculative |
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