Variable Speed Limit Trailers

Available for Rental or Purchase

Speed is the number one cause of work zone crashes. Calm traffic through a work zone by incorporating Variable Speed Limit trailers. Speed limits can be adjusted remotely via software and also set on a schedule to align with construction schedules.

Contact us to discuss the Variable Speed Limit trailers and learn how these can help make your next work zone more safe.



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Features & Specifications

Display workzone speed limits in real time. Proven to be more effective than static speed limit signs.
Rent or Purchase Any Quantity
Display features LED pixels with automatic brightness adjustment
Change posted speed limits manually, remotely, or on an automated schedule
Connected to WAZE to notify motorist of the Work Zone Speed in their vehicle
All color & sheeting types per MUTCD & C&MS614
Trailer configurations may vary by state. Contact us to discuss multiple options
Integrates with:
  • WAZE
  • Google Maps
  • DOT 511 Systems
  • Work Zone Data Exchange (WZDx)
  • Other integrations possible



Identify and Deliver
Map out the right equipment for the job and deliver on project deadlines with ready resources.


Data Collection and Analysis
Quickly locate equipment and assess traffic flow anywhere with unmatched tracking capabilities.


Technology and Integration
Make collisions next to impossible with software and systems that leave no zone uncovered.


Choose between two levels of certainty with real-time eyes on the job, plus video backup.

Deployment Criteria Considerations

A VSL system should be considered for deployment as part of a project’s temporary traffic control plan when the following conditions are anticipated:

  • It causes 10 minutes or more of additional travel time.
  • Work zone queue is estimated to slow traffic at least XX mph below the posted speed limit.
Variable Speed Trailers

Anticipated System Effects

When properly designed and deployed for a specific project, a VSL System should advise drivers of an appropriate vehicle speed to allow them to travel through the work zone with minimal braking. The system determines the average speed of downstream traffic and advises upstream traffic of an optimum speed to approach the queue. It is anticipated that the system will smooth the transition between faster and slower moving traffic and provide an increase in capacity on the roadway through the work zone area.

VSL Signs Make Debut at Point of the Mountain

Electronic variable speed limit signs were placed along the freeway construction project straddling Salt Lake and Utah counties on Friday. The speed limit now reads 55 mph when construction workers are in the area and will be raised to 70 mph whenever they aren’t there.

Check out an active work zone with our VSL trailers


Why rent when I can buy?

Reallocate what you have budgeted for new equipment and use it elsewhere to grow your business. Our economical (weekly/monthly/seasonal/annual) rental options ensure an immediate return on investment and eliminates the costs of ownership.

Can you help us with Smart/Intelligent Work Zones, Queue Warning Systems, etc.?

You bet we can! We’ve helped integrate and deploy hundreds of these systems. Contact us for a quote and we’ll help you create a winning bid.

Where is the closest Street Smart location?

With next day delivery available on any of our equipment, we’ve got your back!

How does the app help me manage and monitor the Smart Work Zone, real-time?

The app provides up-to-date information, including among other things, current and historical battery voltage, quality of communication links, video feed from traffic and workzone-facing web cameras in real-time, and historical footage from any web-enabled device. Schedule a Live Demo, and we’ll show you more about the app Dashboard.

Your ROI may be greater than you think. Fill out the form to see your true ROI.

/ Return on investment
/ to break even
With a rental investment of just $ per day, you’ll need to put this to work for only days to break even, leaving you with days of pure gravy. You’ll enjoy invoicing the customer a total of $, giving you a return on rental investment of $!

*This is an estimated ROI. Delivery charges not included.



Traffic Control Companies

Reduce the stress of managing a work zone and all of its surprises

General Contractors

If you have cones and flaggers but have gaps in your Smart Work Zone needs, take on more bids and improve work zone productivity and safety

Public Sector

Meet safety and equipment requirements with custom work zone designs

Security Integrators

Tap into additional revenue in the surveillance re-rental market

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