Gridlock Alert Days are when heavy traffic is expected in Manhattan.

This is during the:

• UN General Assembly
• Holiday season

The Department of Transportation (DOT) identifies these days by using traffic data from past years.

On these days, you should consider the following for any trips in Manhattan:

• Walking
• Biking
• Mass transit

The 2024 Gridlock Alert Days are:

• Monday, September 23, 2024
• Tuesday, September 24, 2024
• Wednesday, September 25, 2024
• Thursday, September 26, 2024
• Friday, September 27, 2024
• Wednesday, November 20, 2024
• Thursday, November 21, 2024
• Friday, November 22, 2024
• Tuesday, November 26, 2024
• Tuesday, December 3, 2024
• Wednesday, December 4, 2024
• Thursday, December 5, 2024
• Friday, December 6, 2024
• Tuesday, December 10, 2024
• Wednesday, December 11, 2024
• Thursday, December 12, 2024
• Friday, December 13, 2024
• Tuesday, December 17, 2024
• Wednesday, December 18, 2024
• Thursday, December 19, 2024

Learn more about Gridlock Alert Days.