Blog / Lane closures

Lane closures

5 articles on lane closures.

Aerial view of cars in lanes separated by rows of orange drums on a highway

Traffic control plans

Late Merge in Work Zones: How the Zipper Merge Is Signed and When It Is Used

The late merge, often called the zipper merge, tells drivers to use every lane up to the taper and take turns. The MUTCD 11th Edition has a section on it. Here is what that section says, the signs and messages it names, and what a traffic control company needs to know before setting one up.

Oct 10, 2026 · 6 min read

Traffic OS — Types of lane closures explained

Compliance and work-zone safety

Types of Lane Closures Explained: Shoulder, Single-Lane, Multi-Lane, Lane Shift and Full Closure

A traffic control lane closure is not one setup. How shoulder closures, right- and left-lane closures, interior and multiple-lane closures, lane shifts, one-lane two-way operations, mobile closures and full road closures differ under the MUTCD, and what each means for crew, devices and price.

Oct 2, 2026 · 16 min read

Construction manager on the phone at the edge of an arterial lane closure

Choosing software

Customer and Public Notifications for Lane Closures: Who Needs to Know, and When

A lane closure has an audience beyond the drivers who pass it: the customer who ordered it, the agency that permitted it, emergency services, businesses along the road and the public. Here is how to structure notifications so the right people hear at the right time, and how to automate the routine ones.

Sep 23, 2026 · 5 min read

Traffic OS — What a lane closure traffic control plan actually specifies

Traffic control plans

What a Lane Closure Traffic Control Plan Actually Specifies

A walk through the contents of a lane closure plan — the areas, the devices, the dimensions, the schedule constraints and the notes — and what each part is actually telling the crew to build.

Sep 11, 2026 · 5 min read

Traffic OS — one-lane two-way traffic control with a pilot car on a rural highway

Compliance and work-zone safety

One-Lane, Two-Way Traffic Control: The Five Methods and When Each Fits

Flagger control, flag transfer, pilot car, temporary signals, and stop or yield control — what the standard permits, the limits on each, and how the choice changes crew cost.

Aug 23, 2026 · 12 min read