Data study

The hairpin census

4,012 hairpins across 713 verified roads, every one counted from the road’s real mapped geometry. The legends round up; we measure. Free to cite with a link.

#RoadCountryHairpinsPer mile
1Spiti Valley RoadIndia1090.6
2Leh–Manali HighwayIndia1000.4
3Tribhuvan HighwayNepal811.2
4Stelvio PassItaly752.6
5Punta OlímpicaPeru601.1
6Coll de Sóller (Ma-11A)Spain507.8
7Col de la LombardeFrance442.1
8Sichuan–Tibet HighwayChina410.2
9Babusar PassPakistan410.6
10Tsugaru Iwaki SkylineJapan407.1
11Siddhartha HighwayNepal390.4
12Col de BrausFrance382.9
13Abano PassGeorgia380.7
14Vršič PassSlovenia362.9
15Langada PassGreece361.1
16Duku HighwayChina360.1
17Khardung LaIndia350.5
18Passo delle Erbe (Würzjoch)Italy331.1
19Passo di Croce DominiItaly331.3
20Tongtian AvenueChina334.7
21Passo GiauItaly322.6
22San Bernardino PassSwitzerland323.4
23Col de la BonetteFrance311.1
24Route de CilaosFrance311.4
25Thrumshing La RoadBhutan310.3

Method

Every road in the catalogue is traced from real road geometry (© OpenStreetMap contributors). The line is walked bend by bend and a hairpin is registered when the road folds back past a threshold angle, the same measurement the corner counts and tightness scores use across this site and the Routes app. Where our measured figure disagrees with a road's legend, we publish the measurement. How roads get verified ›

Cite any figure here with a link to bestdrivingroads.com. For the full dataset terms, see using this data.

Census questions

Which road has the most hairpins in the world?
Of the 713 verified roads in our catalogue, Spiti Valley Road leads with 109 measured hairpins. Every count comes from the road’s mapped geometry (a hairpin is a bend tighter than a threshold angle), not from tourist-board copy.
Which road packs hairpins tightest?
Coll de Sóller (Ma-11A): 50 hairpins in 6.4 miles, about 7.8 per mile. The famous names are longer, so the density crown often surprises people.
How are hairpins counted?
From the mapped line of each road: the geometry is walked bend by bend and a hairpin is registered when the road folds back past a threshold angle. That is why our figures sometimes disagree with the legend, and when they do, we publish the measurement.