On the scene at the M25 closure: did it really cause traffic chaos?

It’s not like you can just build another main road, either; virtually every piece of undeveloped land in the area is protected by law, underground tunnels would be prohibitively expensive and no one wants their house to be flattened for a motorway.

Between 4000 and 6000 cars each way, per hour, would normally use this 4.8-mile, eight-lane section of motorway on a weekend. Instead, they’re being sent - if, as requested, they follow the official diversion - on an 11-mile magical mystery tour of the sleepier parts of Surrey, crawling within sight of both the former Brooklands racetrack and the McLaren HQ just outside Woking. 

After the first half-mile on the A3, the diversion route is comprised purely of single-carriageway roads, with numerous roundabouts, traffic lights and other bits of potentially progress-impeding street features you certainly wouldn’t find on a motorway. National Highways has issued an advisory to avoid the area like the plague, but locals and drivers alike are expecting Carmageddon.

I’d been designated Autocar’s M25 mayhem correspondent, but I didn’t fancy taking my car anywhere near the inevitable mess. So my plan was to become Byfleet’s no-name, full-suspension mountain bike guy, digging out my bike for the first time in years so I could zip past the inevitable unending miles of furious motorists. Executing my plan meant an early-morning train ride from my home in Dorset. It was unexpectedly busy; had people actually heeded the advice and sought alternative transport?

I hop off the train at Byfleet & New Haw, about half a mile north of the diversion route, and head for the A245, expecting it to be transformed into a car park. Cut down the alley, head down the path towards the roundabout and… oh, everything is fine.

Byfleet isn’t a dystopian future vision of a cyberpunk future where public transport is banned and people are forced to drive everywhere, choking the streets with traffic - it’s just a small town with a road that barely qualifies as busy going through the middle of it. Sure, there are more lorries than normal, but the road itself is flowing along like it would on any other Saturday morning.

The diversion route crosses over an eerily deserted M25 - eight lanes of silence. A fair few locals have cycled up here to take a look at the empty expressway, and they share my disbelief that it’s possible for the diversion route to be so quiet - especially as any M25 issues tend to end up clogging their local roads.

Further along, West Byfleet high street - a traffic-light-controlled crossroads that was expected to be a massive bottleneck - is also flowing just as smoothly as it normally would. I speak to a few shop owners, who are as surprised about the whole thing as I am.

“I cancelled all of our appointments for today, but I needn’t have bothered,” says Ian Barnes, who runs Surrounds Art on the high street. “I drove in super-early at 6am expecting pandemonium, but it’s been even quieter than it normally is. I think that’s because it’s been advertised so well and so far in advance.”

Tony Evans, who lives on a cul-de-sac that leads onto the diversion route, agrees with the sentiment. “We were given advance warning. The bridge over the canal [on the route] was closed the other week, but they made it clear the work had to be done in time for this, so we’ve been on notice for two months,” he says. Evans had expected to be blocked in, so set the weekend aside to polish up his classic Ford Thunderbird instead. 

The small pockets of traffic that do appear seem to mainly be as a result of people trying to turn against the flow of the tide, attempting to head down side roads and pull into driveways. As I make my way towards the junction with the A3, it slows down - Waze reckons traffic is averaging 8mph - but it never stops completely. The other way, towards Woking, is even clearer. What was expected to be a pinch point for people on the diversion route and those trying to get into the largest town in the area is surprisingly clear.

All in all, it’s a successful diversion. With advance notice and people actually listening to the advice from National Highways, it’s worked out so much better than anyone could have expected. Of course, it wouldn’t be like this every day - many people have undoubtedly adjusted their plans to avoid heading out on the roads today - but it’s hard to argue that it’s been pulled off incredibly smoothly. There are five more similar closures scheduled on the M25 this year. Here’s hoping they’re all like this.