ERP Gantries and Charges
- Mr Lim Biow Chuan asked for the number of vehicles passing through the CTE south of Braddell Road ERP gantry during morning peak hours in the last four quarters and how LTA computes vehicle speeds for ERP charges.
- Lui Tuck Yew provided the average vehicle counts for the past four quarters and noted a 15% traffic increase since the CTE widening project ended in December 2011.
- ERP charges are determined by traffic speeds measured via ITS devices like EMAS cameras over two-week quarterly reviews, using the 85th percentile speed to trigger rate changes for smooth travel.