You can find 'Since 9/11' near the Aquatic Centre in Queen Elizabeth Olympic Park, Stratford.
The artwork is located on a raised mound above the Aquatic Centre car park and is accessible either from the direction of the Centre or from Carpenter's Road - it is free to visit and is wheelchair accessible.
The nearest stations are Stratford, Stratford High Street and Stratford International, and the nearest bus stop is London Aquatics Centre (339 and D8). From the stations, follow signs for the Queen Elizabeth Olympic Park, then signs for the Aquatic Center.
If approaching from the Westfield Centre, follow signs to the Aquatic Centre and the Queen Elizabeth Olympic Park. Follow the raised walkway from the Westfield Centre towards the Olympic Park you will see signposts pointing the way down to the Artwork.