By job
Lane closure and road work equipment
A lane closure has a structure: advance warning signs, a taper that merges traffic, a buffer, and the work area. Each part has its own device spacing and size rules in the MUTCD and your state supplement.
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What to order
- 28 in Reflective Traffic Cone, 7 lb
The standard channelizing device for most lane closures, day and night.
- 36 in Reflective Traffic Cone, 10 lb
Highways and high-speed roads where drivers need more warning.
- 28 in Grab-Top Cone with 16 lb Base
Mobile operations where cones are placed and picked up from a truck.
- 42 in Delineator Post with Rubber Base
Long tangents and tight tapers where cones take too much room.
- Water Wall Barrier, 32 x 72 in
Separating the work area from traffic on longer jobs.
Planning tips
Size the taper
For speeds of 45 mph and up the taper length is the lane width times the speed. Below 45 mph it is width times speed squared, divided by 60. Space devices about one foot per mph of speed.
Night work needs reflectivity
At night, cones need 6 inch and 4 inch reflective collars, and many jobs add warning lights or move to drums.
Questions
How many cones do I need to close one lane at 45 mph?
A 12 ft lane at 45 mph needs a 540 ft taper. At about 45 ft spacing that is 13 cones for the taper alone, plus cones along the buffer and work area.
Other jobs: Crowd control equipment for events and festivals · Construction site perimeter and security equipment · Sidewalk and street closure equipment · Parking lot and garage traffic control · Traffic and crowd control for schools and campuses