It is a stretch of the Marina Bay Street Circuit that has undergone several changes since Singapore first hosted the Formula One races in 2008.

Come the next F1 Singapore Airlines Singapore Grand Prix race weekend from Sept 18-20, and the race route near Empress Place - from Turns 11 to 13 - will again be modified.

This time, the changes - which have been approved by the International Automobile Federation - are to accommodate enhancement works for the new Civic District - an ongoing $740 million project that aims to revitalise the Esplanade Park and Empress Place areas.

The right-hand Turn 11 will be re-aligned to sit tighter with the left-hand side of Fullerton Road for a slightly slower corner speed compared to last year's race.

The left-hand Turn 12 will be modified so that drivers now enter the left lane of Anderson Bridge. The Turn 13 hairpin turn after the bridge will be widened by one metre, to enable more overtaking opportunities.

"I expect the modifications from Turns 11 to 13 will enable closer racing and the potential for additional passing opportunities," said Faithful+Gould senior project manager and engineering track manager Jonathan Giesecke, who oversaw the changes to the circuit.

The last major change to the circuit was made before the 2013 Grand Prix when Turn 10 chicane right after the then-Supreme Court building was replaced with a single-apex left-hand bend, after complaints about safety by drivers.

Meanwhile, the new 220m Jubilee Bridge - which links the Merlion Park to the Esplanade promenade - has also been incorporated into the Circuit Park, providing spectators with an ideal vantage point of the fireworks display once the chequered flag is waved.

Patrons can also access the Circuit Park via a new gate at the Merlion Park.

Ticket-holders can visit the official website (www.singaporegp.sg) to find out about the new Circuit Park gate locations.