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Positive Separation

Better ways are needed to balance the need for traveler mobility through work zones, and the adequate space, lighting, and work environment are needed to get the job done safely. Positive protection can reduce the risk to workers and travelers with the use of devices, which contain and redirect vehicles. The risk and consequences of vehicle intrusions can be substantially reduced by the use of barrier separation between motorists and workers, increased use of truck-mounted attenuators and intrusion alarms for the work site.

• Roadside Hardware Work Zone Devices
• NCHRP 350 Crashworthiness Information (PDF, 2.5MB)
• New 07/15/08 Work Zone Positive Protection Toolbox (PDF, 683KB) - This toolbox describes the various types of positive protection devices currently in use, as well as provides guidance on where and how each device is typically used.

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