
Why Is the M25 the Busiest Motorway in England?
England, europe
188 km
N/A
moderate
Year-round
Located in London, the capital of England, the M25 is an orbital motorway that almost completely encircles the country’s largest city. Officially known as the London Orbital Motorway, it is one of the busiest and most controversial roads in the United Kingdom. Loved by very few but used by millions, the M25 is essential for London’s transport network, linking counties, cities, airports, and major routes across the southeast of England.
The M25 is a 188 km (117 miles) long motorway, forming a near-complete circle around Greater London. It is one of the world’s largest orbital roads, connecting key motorways and A-roads that lead into the city. Its official designation is the London Orbital Motorway, though drivers know it simply as the M25.
The M25 was part of the ambitious Ringways Scheme, a plan from the 1960s to build several concentric motorways around London. Much of the scheme was cancelled due to protests, funding problems, and controversy. However, sections already under construction were connected together, creating the motorway we know today.
Construction began in 1975, and the motorway was officially completed in 1986, opened by Prime Minister Margaret Thatcher. At the time, it was designed to handle around 100,000 vehicles per day. Today, traffic has doubled in some stretches, with over 200,000 vehicles per day recorded between certain junctions.
The motorway is often described as Britain’s busiest and most disliked road. It is a vital link not only for Londoners but also for travelers heading to destinations such as Heathrow Airport, Gatwick Airport, or popular attractions like the Harry Potter Studios in Leavesden. Its strategic role means that locals, tourists, and freight transport all rely heavily on it.
Yes. As a major motorway, the M25 is fully paved and open year-round, although congestion is frequent. It is often jokingly referred to as “Britain’s biggest car park” due to its notorious traffic jams. To manage the flow, variable speed limits and traffic management systems were introduced, particularly in the 1990s and 2000s.
Despite its bad reputation, the M25 is crucial for the UK’s economy and mobility. It links together several motorways, connects key counties, and allows for the movement of goods and people around London without having to pass through the city itself. It remains a symbol of both modern engineering and modern frustration.Road suggested by: Derncho74 // Lankyyy Gaming
Embark on a journey like never before! Navigate through our interactive map to discover the most spectacular roads of the world
Drive Us to Your Road!
With over 13,000 roads cataloged, we're always on the lookout for unique routes. Know of a road that deserves to be featured? Click here to share your suggestion, and we may add it to dangerousroads.org.
Where is it?
Why Is the M25 the Busiest Motorway in England? is located in England (europe). Coordinates: 54.1022, -2.0023
Road Details
- Country
- England
- Continent
- europe
- Length
- 188 km
- Difficulty
- moderate
- Coordinates
- 54.1022, -2.0023
Related Roads in europe
hardA Memorable Road Trip to Platigliole Pass in the Alps
🇮🇹 Italy
# Passo delle Platigliole: A Wild Alpine Adventure Want to experience one of Europe's highest road trips? Head to the Passo delle Platigliole in Italy's Sondrio province, perched at a jaw-dropping 2,908m (9,540ft) above sea level. This gem sits in Lombardy near the Swiss border, and honestly, it's not for the faint-hearted. The route runs north-south from the famous Stelvio Pass to Rifugio Piccolo Pirovano, starting from the parking area near the cable car station on the Bormio side. Fair warning: this isn't a typical mountain road. The entire 1.93km (1.2 mi) stretch is completely unpaved, so you'll absolutely need a 4x4 to tackle it. The landscape is otherworldly—think lunar terrain that'll make you feel like you're driving on another planet. Most of the drive is manageable, but watch out for two gnarly sections with a brutal 25% gradient that'll test your driving skills. Push through, and you'll reach the road's end at 3,018m (9,901ft), where the snow, glaciers, and ski slopes take over. There are a few lodges scattered around the zone if you want to soak in the experience. Now, the atmosphere up here? Absolutely wild. The wind howls relentlessly, and the cold is no joke. Forget about attempting this in winter—it's completely impassable. As you climb, you'll catch stunning views over the Stelvio Pass, making every challenging stretch worthwhile. The terrain constantly shifts from flat sections to seriously steep passages that'll keep you on your toes.
extremeWhere is Strada Provinciale 18?
🇮🇹 Italy
Okay, picture this: you're cruising through Italy's Autonomous Province of Trento, and you stumble upon the Strada Provinciale 18. This isn't just any road; it's carved right into the rock, hugging the cliffs high above the Laghi valley. Locals call it the Panoramica di Ranzo, and trust me, the views live up to the name. Just 20 km from Trento and 35 km from Riva del Garda, this 7.5-kilometer stretch of paved road winds its way from Ciago (just north of Vezzano) up to the charming town of Ranzo. It's a less-traveled route that plunges you straight into the stunning Paganella massif. Now, let's be real, this road isn't for the faint of heart. There are parts so narrow that two cars can barely squeeze by. And yes, there's a risk of rockslides – it's literally carved into a cliffside! But don't let that scare you off completely. The SP18 is famous for a reason. It's a total nail-biter, but those views! You'll be staring down at Vezzano, Fraveggio, Monte Terlago, Ciago, and Lon. Keep an eye out for the panoramic viewpoint near Ranzo; it's the perfect spot to pull over and soak it all in. Built in 1948 to connect isolated towns, the road used to be quite treacherous. Landslides were a serious problem. Thankfully, safety improvements in 2016, like rockfall barriers and netting, have made the drive much safer, but still exciting.
moderateHow to Get by Car to Lac de Chateaupre in the Heart of Valais?
🇨🇭 Switzerland
# Lac de Châteaupré: Alpine Magic in Switzerland Tucked away in the Valais region of southern Switzerland, not far from the Italian border, you'll find Lac de Châteaupré—a glacial gem sitting pretty at 2,357m (7,732ft) above sea level. This stunning lake in the municipality of Grimentz has earned itself a reputation as one of the most gorgeous lakes on the planet, and honestly, once you see it, you'll understand why. The Route de Moiry is the paved road that'll get you there, and it's been welcoming visitors since the 1950s. Fair warning: it's narrow and lacks guardrails, so you'll want to keep your wits about you. But here's the thing—the trade-off is absolutely worth it. This scenic route hugs the shoreline of Lac de Moiry and treats you to jaw-dropping vistas of glaciers and towering snow-capped peaks that'll make your heart skip a beat. The drive from Grimentz is just under 10km (about 6 miles) of pure Alpine bliss. You'll end up at a spacious parking area on the north side of the lake—the perfect launching point for exploring the magnificent Glacier du Moiry nearby. Just a heads up: this road is nestled in the Val d'Anniviers valley and typically stays open from late June through the first major snowfall of the season, so plan your visit accordingly!
extremeWhere is Bicaz Gorge?
🇷🇴 Romania
Okay, picture this: you're cruising through Transylvania, Romania, and BAM! You hit Bicaz Gorge. This isn't just any road; it's a wild ride carved right through the mountains! Officially called DN12C, this totally paved road winds for about 10.8 kilometers (6.7 miles) between Lacu Roșu and Bicaz-Chei. What makes it epic? For starters, the road is pretty narrow and has 12 hairpin turns to keep you on your toes. The cliffs are insane, towering 300 meters (almost 1000 feet!) straight up. There are even tunnels, and the road hugs the rock face so close in a section called the "Neck of Hell" that you'll feel like the walls are closing in. Located inside the Cheile Bicazului-Hășmaș National Park, you can find cool bazaars selling local crafts. The scenery is non-stop gorgeous, with cliffs that seem to rise straight out of the asphalt. And if you’re up for more exploring, just past the gorge is the beautiful Lake Bicaz. Just be prepared for serpentine roads with rock on one side and a sheer drop on the other. The legend says that the nearby "killer lake" was formed from the blood of unfortunate picnickers crushed by a mountainside collapse. Morbid? Maybe. Unforgettable? Definitely!