Yes, you just recovered from the crowds at Oracle OpenWorld, we know. But now an even bigger event, Salesforce's Dreamforce convention is here through Saturday October 18 to snarl things right back up again.

You thought the 60,000 people here for Oracle were rough to take? Last year double that attended Dreamforce, and they say they expect even more attendees in 2014. These Dreamforcers will take over not just Moscone Center, but the Marriott Marquis, the InterContinental, the Palace Hotel, the Hilton Union Square, the Westin Market Street, the Century Theaters at Westfield, and the Westin St Francis.

According to the SFMTA, as of 8 p.m. tonight, Howard Street between 3rd and 4th streets and Fulton Street between Larkin and Hyde streets will be closed, and won't reopen until 3 p.m. on Saturday, October 18.

Starting at 6 a.m., Saturday through 6 a.m., next Saturday, Grove between Larkin and Polk will also be shut down. as of 10 p.m. Monday, you can also kiss Larkin Street between Hayes and McAllister streets, Polk Street between McAllister and Grove streets, and Grove Street between Larkin and Hyde streets goodbye until 6 a.m. on Wednesday, October 15.

That's not all! From noon Tuesday, October 14 to 6 a.m. Wednesday, October 15, Grove Street between Van Ness Avenue and Polk Street, Polk Street between Grove and Hayes streets, and Dr. Tom Waddell Place (that's the street formerly known as Lech Walesa) between Van Ness Avenue and Polk Street will be closed.

That last closure is likely because of the Tuesday's "Concert for UCSF Benioff Children’s Hospitals," an event that's part of their "Dreamforce Gala." That night, attendees will enjoy cocktails at City Hall, a performance from Bruno Mars at Civic Center Plaza, and a performance from Cake (remember them?!?) at Bill Graham. There's even an "exclusive after-party" at City Hall, hosted by MC Hammer and (twitter hissyfitter) Of course.

As you can imagine, pedestrian traffic (remember: 120,000 people) will be pretty intense, and vehicle traffic even worse downtown, even though the SFMTA says that "Parking Control Officers and San Francisco Police Officers will be deployed at key intersections throughout the closures." So if you can, avoid the closed areas, but be aware that the below Muni routes will also experience service delays and disruptions due to the convention:

8X (AX/BX) Bayshore Express
9 San Bruno
10 Townsend
12 Folsom
14 Mission
14L Mission Limited
14X Mission Express
16X Noriega
19 Polk
21 Hayes
30 Stockton
38/38L Geary
41 Union
45 Union-Stockton
81X Caltrain Express

Good luck, everyone.