In a lot of cases, ACO’s TraffikDrain and KerbDrain Systems are more cost effective to install than traditional kerb inlet pit and pipe systems.
Using pricing derived from the Rawlinsons Construction Handbook, a cost analysis was carried out based on a 100m length of road to include the trench excavation, backfilling, installation of the drainage system and laying the kerb.
Compared to the kerb inlet pit and pipe system:
There are advantages of trench drainage (ACO’s TraffikDrain and ACO’s KerbDrain) compared with the kerb inlet pit and pipe system with regard to:
1) Hydraulics & Safety
- Trench drainage can eliminate the need to install multiple pits. For more information, click here
- Low risk of aquaplaning created by flow into the traffic lane
- No shoulder width is required to accommodate gutter flow
- High capacity slot inlets repeated along the run ensures quicker water removal from the road
- Shallower excavation compared to deep trenches for pipes
- Shallow installation minimises the risk of interference with existing services
- KerbDrain eliminates the need to construct a separate kerb and drainage system
- Blockages can be identified quicker through TraffikDrain grates
- Rubbish easily cleaned out by removing the TraffikDrain grate above the blockage
- KerbDrain inspection units can be used anywhere along the run
For full details on the comparison, click here