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Motorsport
Motorsport
Sport
David Malsher-Lopez

Changes to IndyCar’s Nashville track in its second year

There were a total of nine cautions in the 2021 Big Machine Music City Grand Prix in Nashville, so that 33 of the 80 laps were run under yellow, and there were two red-flag periods.

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This year, restarts will be held in the same place as the start, the longest straight on the track, namely the Korean War Veterans Memorial Bridge that leads into Turn 9. The push-to-pass boost will first become available to drivers as they approach the start-finish line.

Last year the restarts began just before the last turn so the cars were up to speed before they reached the start-finish line, but green-flag conditions before the whole pack had filed through the last turn meant that passes were made while the cars were still packed tightly together, leading to clashes and controversy at Turn 11, the final corner on the 2.1-mile course.

Further easing this potential issue is that the track is now four feet wider at the apex allowing better sight lines.

The entrance to Turn 9, by contrast, has been considerably narrowed – from 85 feet to 60 feet – due to hospitality suites being added, which significantly slows down the corner entry. Coming as it does after the long bridge drag over the Cumberland River, the turn should offer a far more effective passing opportunity.

In both directions, the transitions between bridge and terra firma have been reprofiled in an attempt to reduce the bumps. Prior to the inaugural event, this repaving was carried out just 20 feet after the transitions, but this year the extra asphalt has been increased to 125 feet to make the transitions far more gradual.

A bump in Turn 5 has been reprofiled, too, but more significant could be the reduction in pitlane speed limit from 45mph to 40, which IndyCar estimates will add around three seconds to time loss in pitlane. This should eliminate the chance of the race leader pitting under caution and hitting the pitlane/racetrack blend line ahead of whichever cars remained on track, bottled up behind the safety car.

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