Traffic Control Devices & Requirements

Traffic Control Devices

Using Appropriate Traffic Control Devices for Traffic Control

Traffic control devices are signs, signals or other marking devices which are used to regulate and guide traffic. They warn both cars and pedestrians of possible dangers on the street or highway. These devices are paramount for promoting highway safety and the efficient flow of traffic through construction or other dense traffic zones.

The Manual on Uniform Traffic Control Devices (MUTCD) is recognized as one of the most widely used standards for traffic control. If you are unsure whether your traffic control equipment is appropriate for the job, this document will help you with many of your questions.  The latest edition was just updated in May of 2012 and is available online in pdf form with a ‘hot links’ version to make finding answers to your questions even easier:

Traffic Control Device Manual


Manual on Uniform Trafic Control Devices
(Regular and Hot Links PDF Versions)

In this manual you will find best practice standards, traffic control marking, and requirements for traffic control equipment from regulatory signs and traffic barricades to safety fences and school crossing signs. There is very detailed information on colors, sizes and other requirements which you will find very useful.
Of course, if you have more questions, we invite you to call our staff and we can help you choose the appropriate traffic control devices for your project.  You can call us toll free at (877) 966-1018.

Safety Wear

The spring and summer seasons are also road construction seasons and keeping workers safe is high priority.  Many people have questions about which safety wear is needed for what jobs and what requirements the safety wear needs to meet.   ANSI/ISEA  is a voluntary industry standard which  specifies the requirements expected for high-visibility safety wear for construction workers, utility workers, landscaping, and fire fighters.

There are many different types of safety wear including safety headware, safety vests, safety pants, jackets and shirts.  Depending on the type of work being performed, persons in construction or otherwise high traffic areas should be aware of the the three levels of high visibility apparel standards.

Class 1 Safety Wear: Appropriate where there is plenty of separation of workers from vehicle traffic and where the work area is not complex.  Additionally, traffic speeds are not expected to exceed 25 mph in these areas. This class of safety wear are often seen on parking service personnel, warehouse staff, and those doing shopping cart or sidewalk maintenance.

Class 2 Safety  Wear:  Appropriate when work activities take place closer to traffic and where these activities may divert worker attention from approaching traffic with speeds exceeding 25 mph. The Class 2 safety apparel is often seen in greater than 25 mph construction zones, parking and tollway personnel, school crossing guards, airport grounds personnel and those directing traffic.

Class 3 Safety Wear: Appropriate for workers who are exposed to higher vehicle speeds and/or reduced sight distances.  The worker must be visible throughout body movement and must be identifiable as a person at a distance of 1,280 feet away.  These garments provide the best visibility with lots of extra reflective surface and they must have sleeves with retroreflective material between the shoulder and arm to make movement more noticeable.   These are often used by railway workers, roadway construction staff, vehicle operators and accident site investigators.

There are several different colors to choose from when it comes to safety wear.  The flourescent yellow green is thought to be the most visible color for dusk and dawn when there is less light.  It can also provide some contrast for those in work zones with orange traffic cones and safety equipment.  The flourescent orange color is also a very popular color and has good contrast for areas that have more foliage.  This is typically the safety color in work zones.  However, if you are trying not to blend in with a plethora of other orange safety equipment then as stated above, the flourescent yellow green may be a better choice.

If you still have questions about which safety apparel to order, give us a call at (877) 966- 1018 and we can help answer your questions.