Dear TfL if really wants to do something about congestion, then a simple measure is sufficient: during rush hour No articulated vehicle allowed to park or enter construction site on City Road
The issue that you have reported relates to litter collection and removal. This is the responsibility of the local borough under the Environmental Protection Act. Please re report it to them via fixmystreet.com or contact them directly. Should you need anything else please contact our customer services team on 0343 222 1234