 Flanked by East Coast Park on one side and high-rise housing on the other, the well-landscaped expressway was built and maintained with the conscious intention of giving visitors arriving via Singapore Changi Airport a good first impression of the country as they commute from the airport to the city centre in less than 15 minutes on a good day.Traffic congestion during the morning peak hours, however, led to the introduction of an Electronic Road Pricing (ERP) gantry near the Tanjong Rhu Flyover in the direction towards the city, one of the first two gantries to be set up in the country, which came into operation on 1 April 1998 together with the other gantry at Ophir Road.A decommissioned emergency highway strip was built in the long, straight section of the ECP close to Changi Airport.