Marina Bay Street Circuit
The Marina Bay Street Circuit (otherwise known as the Singapore Street Circuit) is a street circuit around Marina Bay, Singapore, encompassing the planning areas of Downtown Core (Turns 4 to 23) and Kallang (Turns 1 to 3). It is the venue for the Singapore Grand Prix. The track is 5.063 km (3.146 mi) long in a harbourside location similar in style to the Circuit de Monaco and the Valencia Street Circuit.
Singapore Marina Bay Street Circuit
|Location||Downtown Core and Kallang|
|Time zone||SST (UTC+08:00)|
|Broke ground||31 August 2007|
|Opened||31 August 2008|
|Construction cost||~ S$33 million|
|Former names||Singapore Street Circuit|
|Major events||FIA Formula One|
Singapore Grand Prix
Porsche Carrera Cup Asia
Ferrari Challenge Asia-Pacific
TCR International Series
|Current circuit with reprofiled turns 16-17|
|Length||5.063 km (3.146 mi)|
|Race lap record||1:41.905 ( Kevin Magnussen, Haas-Ferrari, 2018)|
|Revised circuit with reprofiled turns 11-13|
|Length||5.065 km (3.147 mi)|
|Race lap record||1:45.008 ( Lewis Hamilton, Mercedes, 2017)|
|Revised circuit with the Singapore Sling chicane removed (2013–2014)|
|Length||5.061 km (3.147 mi)|
|Race lap record||1:48.574 ( Sebastian Vettel, Red Bull-Renault, 2013)|
|Original circuit (2008–2012)|
|Length||5.073 km (3.152 mi)|
|Race lap record||1:45.599 ( Kimi Räikkönen, Ferrari, 2008)|
The circuit is designed by KBR, Inc., a modification of the original one first proposed by Hermann Tilke. The circuit has a FIA Grade 1 license. The circuit holds a unique record of having at least one safety car appearance in every race to date. There has been a total of 18 safety car deployments in eleven races.
On the day of confirmation of the Singapore Grand Prix in the 2008 Formula One season, a routemap was published. The pit area of the circuit is located in an empty plot of land off Republic Boulevard and beside the Singapore Flyer. A temporary track leads from the pit area and under the Benjamin Sheares Bridge to Republic Boulevard and turns onto Raffles Boulevard. It then proceeds along Nicoll Highway, Stamford Road and Saint Andrew's Road around the Padang, past the City Hall.
The track then goes onto the Anderson Bridge, past the Fullerton Hotel and make a tight left turn to Esplanade Drive beside the Merlion Park. It joins Raffles Avenue and cut right after the Esplanade to the front of The Float at Marina Bay and return to the pit area via another temporary road around the Singapore Flyer. The track layout is unique in that in between turns 18 and 19, the cars race underneath a section of grandstand of the Floating Platform.
The track was widely criticised by F1 drivers to be excessively bumpy, particularly on Raffles Boulevard between turns 5 and 7, resulting in a very unforgiving circuit, especially given the hot and humid conditions of the Singapore climate. 2008 World Champion Lewis Hamilton commented that it was twice as hard to negotiate than the more famous Monaco street circuit, and unexpectedly physical – requiring double the amount of energy over a single lap as compared to the Monaco circuit.
Several drivers, including Sébastien Bourdais and Fernando Alonso, expressed their concern about the high and harsh kerbs at the chicane at turn 10 of the street circuit. Ferrari's Felipe Massa compared the kerbs akin to "little tortoises that would wreck the car if you get something wrong". The drivers were worried that hitting the bumps could cause suspension damage or even damage a tub. They also raised concerns that the bumps would pitch them into the wall on the outside of the corner. Whilst the FIA had been involved in the development of these kerbs, in response to the drivers' concerns FIA race director and safety delegate Charlie Whiting agreed to lower the kerbs at the turn 10 chicane ahead of Friday's free practice. The kerbs were further reduced in height for Saturday's qualifying round and Sunday's race. The chicane at Turn 10 was reprofiled for the 2010 race in an attempt to make it safer and the turns more gradual by moving the kerbs, however Lewis Hamilton said in an interview this modification made the chicane more dangerous by making the entry to the corner smaller, calling the complex "the worst corner in F1". In 2013, ahead of the race, the chicane was removed and replaced with a left turn, resulting in faster lap times.
The entry of the pit lane, which begins at the penultimate corner of the 23-turn layout, was deemed to be "difficult and incredibly dangerous" by several drivers due to the fast nature of the corners where they were situated. The problem was deemed to be primarily due to the speed differential of those entering the pits and those continuing on another lap and their sharing of the same race line. The controversial pit entry at Singapore was then modified ahead of Saturday's qualifying round by extending the pit entry line away from the pits. This change compelled drivers to commit to the pit entry earlier, providing additional warning to those following behind. In March 2009, three of the circuit's corners were given names after a competition amongst local F1 fans to submit ideas. Turn 1 was named Sheares after Benjamin Henry Sheares, the second president of Singapore; Turn 7 was named Memorial due to its proximity to a Second World War civilian memorial; and Turn 10 was named Singapore Sling. The Singapore Sling was changed for the 2013 Grand Prix and Turn 10 is now a flowing left-hander.
In January 2010, it was reported that race organisers were considering changes to the circuit for the 2011 season. No major changes were made to the layout for the 2011 race, however Singapore Tourism Board has sought submissions on opportunities to reinvigorate the layout or completely relocate it in the future.
In 2013 season FIA approved track configuration changes. Turn 10 chicane, known as 'Singapore Sling' was removed and replaced with a single-apex left-hand bend. Corner entry speed is about 40 km/h faster. To compensate for the increase in speed, an extra layer of TecPro barriers lines the end of the Turn 10 run-off as an added safety measure.
In 2015, FIA approved minor changes to the layout of the Marina Bay Street Circuit ahead of 2015 Singapore Grand Prix. The modifications run from Turn 11 to Turn 13; drivers will still turn right at Turn 11 but it will now kink left slightly on entry, with the track shifting to the left-hand side of Fullerton Road. This will change the profile of Turn 12, as drivers will now use the other side of the Anderson Bridge, while the hairpin at Turn 13 has been widened by a metre in order to increase overtaking opportunities.
A lap in a Formula One carEdit
Marina Bay Street Circuit starts with a specially made pit straight with the first DRS zone. The pit straight approaching just below the Benjamin Sheares Bridge at a speed of 308 km/h (191 mph) before braking into left-hand turn one to 126 km/h (78 mph). The opening sequence of turns one, two, and three are shaped like an 'S', a curve to the right for turn two, while turn three is to the left at just 83 km/h (52 mph). Now, the car is on Republic Boulevard (along turn 4) speeding up to 260 km/h (160 mph), then heading to right-hand turn five, braking to 145 km/h (90 mph). On Raffles Boulevard (where the second DRS zone is located), flat-out for turn six, to the fastest part of the circuit at speeds of up to 320 km/h (200 mph). Cars enter the apex at turn seven under heavy braking, slowing from 320 km/h (200 mph) to 111 km/h (69 mph).
Turn the car slightly to the right at the start of Nicoll Highway, picking up the throttle to 205 km/h (127 mph), braking to the right for turn eight to 68 km/h (42 mph), onto Stamford Road at 191 km/h (119 mph), before braking to 115 km/h (71 mph) entering turn nine. The braking leads to the St. Andrews Road (in front of the Padang), reaching speeds of 276 km/h (171 mph). Turn ten is a left-hand turn at 115 km/h (71 mph). Turns eleven, twelve, and thirteen were reprofiled before the 2015 Singapore Grand Prix. Drivers still turn right at turn eleven, but it will now kink left slightly on entry, with the track shifting to the left-hand side of Fullerton Road. This will change the profile of turn twelve, as drivers will now use the other side of the Anderson Bridge at 167 km/h (104 mph), while the hairpin at turn 13 (in front of Fullerton Hotel) has been widened by a metre in order to increase overtaking opportunities with braking to 110 km/h.
The car is now at Esplanade Bridge crossing the Singapore river, building up speed to 285 km/h (177 mph). Turn 14 almost meets turn eight, diverting to the right at 78 km/h (48 mph) onto the Raffles Avenue (in front of Esplanade). Next, a series of mostly blind corners from turn 15 to 19. The cars approach to the front of the floating platform grandstand (turn 16 and 17), then goes under the floating platform grandstand (turn 18 and 19) at 80 km/h (50 mph). At turn 18, cars must turn in at a specific angle, otherwise will brush or crash along the wall. Turn 20 and 21 is just right after Bayfront Avenue; a right-hand turn 20, then a left-hand turn 21 that leads the car towards turn 22. How fast the cars approach turn 22 is determined by the exit of turn 21, therefore most of the drivers exit turn 21 very close to the wall to gain a speed advantage. Running down towards turn 22 passes the 165m tall Singapore Flyer, where turn 22 and 23 is taken flat-out at about 180 km/h (110 mph) before picking up the throttle again towards the pit straight across the finish line.
|Current circuit with reprofiled turns 16-17 (2018–present): 5.063 km|
|Formula One||Outright||1:36.015||Lewis Hamilton||Mercedes AMG F1 W09 EQ Power+||2018 Singapore Grand Prix|
|Race||1:41.905||Kevin Magnussen||Haas VF-18|
|Revised circuit with reprofiled turns 11-13 (2015–2017): 5.065 km|
|Formula One||Outright||1:39.491||Sebastian Vettel||Ferrari SF70H||2017 Singapore Grand Prix|
|Race||1:45.008||Lewis Hamilton||Mercedes AMG F1 W08 EQ Power+|
|Revised circuit with the Singapore Sling chicane removed (2013–2014): 5.061 km|
|Formula One||Outright||1:42.841||Sebastian Vettel||Red Bull RB9||2013 Singapore Grand Prix|
|Original circuit (2008–2012): 5.073 km|
|Formula One||Outright||1:44.014||Felipe Massa||Ferrari F2008||2008 Singapore Grand Prix|
Esplanade stretch of the circuit, one week before the 2008 race
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