About This Camera
Camera Location & Hazard Overview
The A20 Sidcup Bypass near Perry Street, on the Bromley/Chislehurst border, runs as a fast dual carriageway with limited access points — one of the few genuinely free-flowing sections covered on this site, meaning any backup here almost always signals a real incident.
Traffic Pattern & Congestion Trends
Morning peak 07:15–09:00 carries Chislehurst and Sidcup commuters heading toward the A2/A20 split at New Cross and on into London. With no at-grade junctions to absorb minor fluctuations, traffic here tends to be either genuinely free-flowing or properly congested, without much middle ground. Evening traffic 16:30–18:00 follows the reverse pattern.
Traffic Fines & Camera Enforcement
This stretch carries a 50mph limit through sections with camera enforcement, with stopping on the bypass prohibited outside emergencies. Given the lack of at-grade junctions, incidents here typically take longer to clear than on roads with regular access points. ULEZ applies across Bromley 24 hours a day; check tfl.gov.uk/ulez for compliance.
Road Closures & Alternative Routes
A confirmed lengthy incident on this stretch is best handled by dropping onto the older route through Chislehurst High Street or Sidcup, adding meaningful time but keeping you moving. For a brief slowdown, sitting it out is usually faster than a residential diversion with unpredictable traffic of its own. A breakdown with no hard shoulder on this bypass counts as a genuine emergency, and having a best breakdown recovery number saved in your phone beats searching for one while stranded on a live carriageway.
Driver Safety & Local Tips
Because this bypass has so few exits, check the camera before you're committed to the stretch, not after — once on it, there's genuinely nowhere to escape until Chislehurst or the next major junction.
ULEZ & Emissions
The London Borough of Bromley now operates entirely within the expanded Ultra Low Emission Zone (ULEZ), which is active 24/7, every day of the year. Non-compliant vehicles (pre-Euro 6 diesel / pre-Euro 4 petrol) face a £12.50 daily charge. No Congestion Charge applies here. Check your vehicle compliance at tfl.gov.uk/ulez.
Parking near A20 Sidcup Bypass/Perry St, South London
The Sidcup Bypass through Perry Street has no roadside stopping at any point — it's a fast dual carriageway with no verge parking permitted. For genuine parking, Chislehurst village a short distance away has its own CPZ with on-street bays and a council car park, both managed jointly by Bromley and Bexley's shared parking service. Bromley's resident permits range roughly £80–£150 a year depending on zone, with visitor voucher books costing £45–£55. Locals treat this bypass purely as a through-route; nobody stops here even briefly given the lack of any safe pull-in. bromley.gov.uk/parking has current charges. Chislehurst's own high street CPZ and council car park are jointly managed with Bromley under the shared parking service, so PCN charges and appeals follow the same borough-wide process.
If on-street parking is hard to find, apps like JustPark and YourParkingSpace let you pre-book a private driveway or car park nearby — typically from around £2–£6 per hour or £10–£25 per day depending on how central the location is.
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