High-Tension Cable Barrier

Cross-median crashes are among the deadliest highway accident types — a vehicle crossing a divided highway median into oncoming traffic carries a much higher fatality risk than a typical run-off-road crash. High-tension cable barrier systems address this by catching and redirecting vehicles within a narrow deflection zone. Road Safety Systems installs MASH-tested cable barrier systems for highway agencies across New York, New Jersey, Pennsylvania, Delaware, and Maryland.

How Cable Barrier Works

Cable barrier systems use three or four high-strength steel cables tensioned between anchor terminals, supported by frangible steel or composite posts. When a vehicle impacts the system, the posts release by design and the tensioned cables absorb and distribute the impact energy over a longer length than rigid barriers, capturing the vehicle within the cable array and redirecting it along the barrier rather than allowing it to cross the median.

Where Cable Barrier Fits

Cable barrier is a preferred median barrier solution on divided highways with adequate median width for dynamic deflection. It typically costs less per linear foot than rigid barrier systems, requires less earthwork, and is compatible with snowplow operations — posts flex and release rather than damaging plow blades, and the low cable profile allows snow to drift through rather than accumulating against a solid barrier face.

Installation and Maintenance

Cable barrier is a maintenance-aware system by design: posts are meant to break on impact and require periodic replacement, cables lose tension over seasonal temperature cycling, and impacts require splice repairs. We verify cable tensions with calibrated tension meters at installation and document anchors, splices, and terminals for as-built records, and we can support ongoing maintenance needs for agencies managing cable barrier inventory.