Updated Official List Details Violations Across Several Locations

Twenty-five cars traveling at top speeds approaching 180 mph will zoom around the National Mall this weekend when the racing series IndyCar takes over downtown Washington, D.C., for a race commemorating the nation's 250th birthday. The Freedom 250 Grand Prix of Washington, D.C., is expected to attract about 140,000 people on each day of the weekend. The event is the first major auto race in the capital in more than 24 years.

The area around the track has been transformed over the past several weeks to make way for the construction of grandstands and enormous barriers, with large portions of the area blocked off to traffic and pedestrians. The race will disrupt several popular tourist destinations around the Mall and limit access to those with tickets to the event. President Trump is expected to wave the green flag to kick off the race, which has been in the works for more than a year.

IndyCar is one of the world's leading open-wheel racing series, generally regarded as second only to Formula 1 in global popularity and prestige. The series is among the fastest racing categories, with cars capable of reaching 230 mph. Its premier event is the Indianapolis 500, one of three races that constitute the "triple crown of motorsport.

This weekend's race will be IndyCar's first in the nation's capital and feature 25 drivers. The race itself begins at 1 p.m. ET on Sunday, but cars will be on track over the course of both Saturday and Sunday, given how an IndyCar race weekend is structured. The drivers will have two practice sessions on Saturday — the first at 9 a.m. and the second at 1 p.m. These sessions allow the drivers and their teams to get accustomed to the racetrack and try out different car setups and strategies, which is especially important on an unfamiliar track.

Qualifying for the race will take place from 5 p.m. to 6:30 p.m. on Saturday. In qualifying, drivers compete to set the fastest lap over three rounds, with slower drivers eliminated after the first and second rounds. The final results set the grid — who starts where — for the race itself.

A special exhibition — the International Race of Champions, or IROC — will be on track Saturday in between IndyCar sessions. The track is 1.7 miles long and features six left-hand turns and one to the right. In a nod to the country's birthday, the race will be 250 miles long, or 147 laps.

The starting grid is directly to the west of the U.S. Capitol on Third Street Northwest. The cars then take a left and speed down Pennsylvania Avenue, before another left-hand turn down Ninth Street Northwest past the National Archives. The track then briefly goes down Constitution Avenue, past the National Gallery of Art.

Drivers will hang a right down Seventh Street Northwest, cutting across the National Mall to reach Independence Avenue Southwest. The track will take the drivers past the Smithsonian Air and Space Museum and National Museum of the American Indian before hitting Maryland Avenue Southwest and looping back to the starting line in front of the Capitol. Tickets for general admission to the race were free, but the window for requesting them closed back in June.

General admission tickets are nontransferable and aren't available on resale sites, either. "No other GA tickets are available for the Freedom 250 Grand Prix, the race's website says. "You must have a ticket for venue access and race viewing.

There are no viewing options or fan zone access available without a ticket. The only way to get access to the race area now is to purchase a hospitality package, which comes with access to the "Champions Club with food, drinks and prime seating. But the Champions Club packages for Sunday or the whole weekend are sold out — the only remaining option on Ticketmaster as of this writing was for Saturday, and that carries a price tag of $3,582.70 for a pair of passes.

Fox Sports is IndyCar's broadcast partner and will show the weekend's action on various Fox platforms. Saturday's IndyCar practice sessions and qualifying will be broadcast on FS1 and FS2, Fox Sports' cable channels. On Sunday, a 90-minute preshow and the grand prix will be broadcast on the Fox broadcast network.

All of Fox's coverage can be streamed on the Fox One app as well. IndyCar is owned by Penske Entertainment, a subsidiary of Penske Corp., whose president is Bud Denker. IndyCar also released a more detailed map showing gates, amenities and other information for attendees.