Construction costs
The high output slipform production process removes the requirement for any manual handling operations.
Along with minimal embedment, this significantly reduces the construction cost of the new concrete step barrier.
Moreover, installation costs are significantly lower than those for comparable steel barriers. The new concrete step barrier is cheaper to install than lower performance double-sided OBB or two parallel lengths of single-sided OBB steel restraint systems.
It is also more economical to install than the existing lower specification vertical concrete barrier already in place on sections of the M25.
Widened step barrier can act as a foundation for lighting columns with masts simply being bolted on to the top of the barrier.
A single median barrier also serves as two kerb lines with drainage outlets in the pavement surface.
Variable profile allows single barrier to cope with super elevated carriageways.
