The Cambridge Congestion Charge, or Sustainable Travel Zone was a scrapped congestion pricing scheme proposed by the Greater Cambridge Partnership that was scheduled for completion in 2027/28. The scheme proposed a £5 minimum daily charge on vehicles entering the city of Cambridge, increased to £10 for vans, and to £50 for heavy goods vehicles and coaches. Exceptions were proposed for "emergency vehicles, disabled tax class vehicles and breakdown services", among others. The scheme became the subject of local controversy, with 58% of respondents recording their opposition to the scheme in an official consultation, which the GCP believed would help fund transport provision and reduce congestion. It was scrapped in September 2023 after Liberal Democrats blocked progress on the proposals.[1][failed verification]