Network Curve Atlas beta
Where the squeal is likely to hide, mapped across networks.
The Network Curve Atlas models curve-squeal risk from track geometry and market data. It is modelled, not measured, and not a claim about any named network. It reads the shape of a network to show where curves are most likely to squeal. Trams first other networks to follow!
327 networks · scores as of 2026-07-31
Modelled, not measured.
Where the index reaches
Every scored network, on one map.
scored network · marker size follows scored-curve count · Modelled, not measured.
At a glance
Scored networks
Susceptibility is modelled, not measured.
Every network scored reaches the tightest geometry band (a sub-30 m curve, score 1.0): tight curves are universal on street-running tram track. Differentiation comes from how many tight curves a network has and how their radii are distributed, not from a single peak.
| Network | Scored curves | Gauge | Scale |
|---|---|---|---|
| Vienna tram network | 1,044 | 1435 mm | |
| Saint Petersburg tram network | 738 | 1524 mm | |
| Prague tram network | 721 | 1435 mm | |
| Brussels tram network | 712 | 1435 mm | |
| Berlin tram network | 670 | 1435 mm | |
| The Hague tram network | 647 | 1435 mm | |
| Leipzig tram network | 589 | 1458 mm | |
| Rhine-Neckar tram network | 568 | 1000 mm | |
| Moscow tram network | 566 | 1524 mm | |
| Amsterdam tram network | 556 | 1435 mm | |
| Wroclaw tram network | 523 | 1435 mm | |
| Dresden tram network | 514 | 1450 mm | |
| Warsaw tram network | 490 | 1435 mm | |
| Helsinki tram network | 480 | 1000 mm | |
| Antwerp tram network | 454 | 1000 mm | |
| Cologne Stadtbahn | 453 | 1435 mm | |
| Budapest tram network | 450 | 1435 mm | |
| Frankfurt tram network | 435 | 1435 mm | |
| Melbourne tram network | 433 | 1435 mm | |
| Stuttgart Stadtbahn | 425 | 1435 mm | |
| Paris (Ile-de-France) tramway | 423 | 1435 mm | |
| Gothenburg tram network | 407 | 1435 mm | |
| Munich tram network | 405 | 1435 mm | |
| Krakow tram network | 401 | 1435 mm | |
| Montpellier tramway | 359 | 1435 mm |
Show all networks (327)
The networks, drawn from open geometry
Every network in the index, drawn from its real track centreline.
Each drawing is the network's OpenStreetMap track centreline. The coloured dots are modelled squeal hotspots: tight curves carrying high geometric susceptibility, before any mitigation. Open a network for its overview: rolling stock, key figures and its tightest curves.
track centreline (OSM) 0.70 to 0.85 0.85 to 0.95 0.95 to 1.00 · Modelled, not measured.
Vienna tram network
Austria
1,044 curves · 1435 mm · 520 trams
Saint Petersburg tram network
Russia
738 curves · 1524 mm · 706 trams
Prague tram network
Czech Republic
721 curves · 1435 mm · 880 trams
Brussels tram network
Belgium
712 curves · 1435 mm · 410 trams
Berlin tram network
Germany
670 curves · 1435 mm · 340 trams
The Hague tram network
Netherlands
647 curves · 1435 mm · 144 trams
Leipzig tram network
Germany
589 curves · 1458 mm · 190 trams
Rhine-Neckar tram network
Germany
568 curves · 1000 mm · 196 trams
Moscow tram network
Russia
566 curves · 1524 mm · 554 trams
Amsterdam tram network
Netherlands
556 curves · 1435 mm · 227 trams
Wroclaw tram network
Poland
523 curves · 1435 mm · 314 trams
Dresden tram network
Germany
514 curves · 1450 mm · 170 trams
Warsaw tram network
Poland
490 curves · 1435 mm · 530 trams
Helsinki tram network
Finland
480 curves · 1000 mm · 120 trams
Antwerp tram network
Belgium
454 curves · 1000 mm
Cologne Stadtbahn
Germany
453 curves · 1435 mm · 390 trams
Budapest tram network
Hungary
450 curves · 1435 mm · 610 trams
Frankfurt tram network
Germany
435 curves · 1435 mm · 75 trams
Melbourne tram network
Australia
433 curves · 1435 mm · 475 trams
Stuttgart Stadtbahn
Germany
425 curves · 1435 mm · 160 trams
Paris (Ile-de-France) tramway
France
423 curves · 1435 mm · 450 trams
Gothenburg tram network
Sweden
407 curves · 1435 mm · 200 trams
Munich tram network
Germany
405 curves · 1435 mm · 120 trams
Krakow tram network
Poland
401 curves · 1435 mm · 430 trams
Montpellier tramway
France
359 curves · 1435 mm · 85 trams
Brno tram network
Czech Republic
346 curves · 1435 mm · 281 trams
Bremen tram network
Germany
313 curves · 1435 mm · 121 trams
Nizhny Novgorod tram network
Russia
312 curves · 1524 mm · 314 trams
Hannover Stadtbahn
Germany
288 curves · 1435 mm · 250 trams
Lodz tram network
Poland
281 curves · 1000 mm · 210 trams
Szczecin tramway
Poland
279 curves · 1435 mm
Bucharest tram network
Romania
277 curves · 1435 mm · 594 trams
Sofia tram network
Bulgaria
277 curves · 1009 mm
Manchester Metrolink
United Kingdom
268 curves · 1435 mm · 147 trams
Odesa tram network
Ukraine
263 curves · 1524 mm
Yekaterinburg tram network
Russia
259 curves · 1524 mm · 438 trams
Magdeburg tram network
Germany
258 curves · 1435 mm
Innsbruck tram network
Austria
254 curves · 1000 mm · 52 trams
Kassel tram network
Germany
252 curves · 1435 mm · 105 trams
Dnipro tram network
Ukraine
250 curves · 1524 mm · 254 trams
Kyiv tram network
Ukraine
244 curves · 1524 mm · 456 trams
Poznan tram network
Poland
243 curves · 1435 mm · 233 trams
Kharkiv tram network
Ukraine
240 curves · 1524 mm · 276 trams
Lyon tramway
France
230 curves · 1435 mm · 100 trams
Turin tram network
Italy
230 curves · 1435 mm · 190 trams
Graz tram network
Austria
229 curves · 1435 mm · 86 trams
Halle (Saale) tram network
Germany
225 curves · 1000 mm · 158 trams
Augsburg tram network
Germany
220 curves · 1000 mm · 77 trams
Nuremberg tramway
Germany
215 curves · 1435 mm
Riga tram network
Latvia
211 curves · 1524 mm · 250 trams
Gdańsk tramway
Poland
210 curves · 1435 mm
Strasbourg tramway
France
205 curves · 1435 mm · 95 trams
Portland MAX Light Rail
United States of America
203 curves · 1435 mm · 149 trams
Samara tram network
Russia
202 curves · 1524 mm · 714 trams
Lisbon tramway
Portugal
200 curves · 900 mm · 57 trams
Erfurt tram network
Germany
196 curves · 1000 mm · 84 trams
Zagreb tram network
Croatia
196 curves · 1000 mm · 259 trams
Toronto streetcar system
Canada
195 curves · 1495 mm · 264 trams
Bern tram network
Switzerland
185 curves · 1000 mm · 57 trams
Oslo tram network
Norway
185 curves · 1435 mm · 87 trams
Stockholm tram network
Sweden
185 curves · 1435 mm · 100 trams
Freiburg tram network
Germany
184 curves · 1000 mm · 73 trams
Casablanca tramway
Morocco
180 curves · 1435 mm · 124 trams
Magnitogorsk tramway
Russia
176 curves · 1524 mm
London tramway
United Kingdom
167 curves · 1435 mm
Rome tramway
Italy
160 curves · 1445 mm
Belgian Coast Tram (Kusttram)
Belgium
155 curves · 1000 mm
San Francisco Muni Metro
United States of America
154 curves · 1435 mm · 249 trams
Novosibirsk tram network
Russia
153 curves · 1524 mm · 114 trams
Athens tramway
Greece
152 curves · 1435 mm
Bydgoszcz tramway
Poland
152 curves · 1000 mm
Perm tram network
Russia
151 curves · 1524 mm · 131 trams
Lviv tram network
Ukraine
150 curves · 1000 mm · 195 trams
Geneva tramway
Switzerland
148 curves · 1000 mm
Grenoble tramway
France
145 curves · 1435 mm · 103 trams
Liberec tramway
Czech Republic
143 curves · 1435 mm
Nantes tramway
France
140 curves · 1435 mm · 90 trams
Nottingham Express Transit
United Kingdom
138 curves · 1435 mm · 37 trams
Potsdam tram network
Germany
137 curves · 1435 mm
Chelyabinsk tram network
Russia
136 curves · 1524 mm · 201 trams
Porto Metro (light rail)
Portugal
135 curves · 1435 mm · 120 trams
Krasnodar tram network
Russia
133 curves · 1524 mm · 359 trams
Brest tramway
France
132 curves · 1435 mm
Caen tramway
France
132 curves · 1435 mm
Bratislava tram network
Slovakia
131 curves · 1000 mm · 211 trams
Kryvyi Rih tramway
Ukraine
131 curves · 1524 mm
Kryvyi Rih tramway
Ukraine
131 curves · 1520 mm
Tunis light rail (Metro leger)
Tunisia
131 curves · 1435 mm · 190 trams
Kazan tram network
Russia
127 curves · 1524 mm · 47 trams
Cottbus tramway
Germany
126 curves · 1000 mm
Istanbul tram network
Turkey
126 curves · 1435 mm
Rostock tram network
Germany
125 curves · 1435 mm · 54 trams
Bielefeld Stadtbahn
Germany
123 curves · 1000 mm · 76 trams
Iași tramway
Romania
123 curves · 1000 mm
Valencia tramway
Spain
120 curves · 1000 mm
Lusail tramway
Qatar
119 curves · 1435 mm
Pittsburgh tramway
United States of America
119 curves · 1588 mm
Jena tramway
Germany
118 curves · 1000 mm
Sheffield Supertram
United Kingdom
118 curves · 1435 mm · 32 trams
Barnaul tramway
Russia
117 curves · 1524 mm
Ulyanovsk tramway
Russia
115 curves · 1524 mm
Darmstadt tramway
Germany
112 curves · 1000 mm
Phoenix tramway
United States of America
112 curves · 1435 mm
Linz tram network
Austria
111 curves · 900 mm · 66 trams
Florence tramway
Italy
109 curves · 1435 mm
Ostrava tram network
Czech Republic
108 curves · 1435 mm · 260 trams
Plauen tramway
Germany
107 curves · 1000 mm
Ulm-Neu-Ulm tramway
Germany
107 curves · 1000 mm
Bergen tramway
Norway
105 curves · 1435 mm
Tula tramway
Russia
105 curves · 1524 mm
Kaliningrad tramway
Russia
104 curves · 1000 mm
Zaporizhzhia tram network
Ukraine
104 curves · 1524 mm · 142 trams
Belgrade tram network
Serbia
103 curves · 1000 mm · 197 trams
Kursk tramway
Russia
101 curves · 1524 mm
Omsk tramway
Russia
101 curves · 1524 mm
Zwickau tramway
Germany
101 curves · 1000 mm
Ufa tramway
Russia
100 curves · 1524 mm
İzmir tramway
Turkey
98 curves · 1435 mm
Kemerovo tramway
Russia
98 curves · 1524 mm
Würzburg tramway
Germany
97 curves · 1000 mm
Denver tramway
United States of America
95 curves · 1435 mm
Gera tramway
Germany
95 curves · 1000 mm
Dallas tramway
United States of America
93 curves · 1435 mm
Nizhni Tagil tramway
Russia
93 curves · 1524 mm
Barcelona tram network
Spain
92 curves · 1435 mm · 41 trams
Toruń tramway
Poland
92 curves · 1000 mm
Los Angeles Metro Rail
United States of America
91 curves · 1435 mm · 337 trams
Volgograd tramway
Russia
91 curves · 1524 mm
Naberezhnye Chelny tramway
Russia
89 curves · 1524 mm
San Diego Trolley
United States of America
89 curves · 1435 mm
Elbląg tramway
Poland
88 curves · 1000 mm
Norrköping tramway
Sweden
88 curves · 1435 mm
Rostov-on-Don tramway
Russia
88 curves · 1524 mm
Khabarovsk tramway
Russia
87 curves · 1524 mm
Tallinn tram network
Estonia
87 curves · 1067 mm · 66 trams
Oradea tramway
Romania
86 curves · 1435 mm
Smolensk tramway
Russia
86 curves · 1524 mm
Houston tramway
United States of America
85 curves · 1435 mm
Parla tramway
Spain
83 curves · 1435 mm
Vitebsk tramway
Belarus
83 curves · 1524 mm
Le Mans tramway
France
82 curves · 1435 mm
Minsk tram network
Belarus
82 curves · 1524 mm · 151 trams
Seattle tramway
United States of America
82 curves · 1435 mm
Hong Kong Tramways
Hong Kong
80 curves · 1067 mm · 165 trams
Angers tramway
France
79 curves · 1435 mm
Marseille tramway
France
79 curves · 1435 mm
Orsk tramway
Russia
79 curves · 1524 mm
Osinniki tramway
Russia
79 curves · 1524 mm
Orleans tramway
France
78 curves · 1435 mm
Luas (Dublin)
Ireland
77 curves · 1435 mm · 40 trams
Zlatoust tramway
Russia
77 curves · 1524 mm
London Trams (Croydon)
United Kingdom
75 curves · 1435 mm · 30 trams
Rabat and Salé tramway
Morocco
75 curves · 1435 mm
Taganrog tramway
Russia
75 curves · 1524 mm
Antalya tramway
Turkey
73 curves · 1435 mm
Olomouc tramway
Czech Republic
73 curves · 1435 mm
Saratov tramway
Russia
72 curves · 1524 mm
Vladikavkaz tramway
Russia
72 curves · 1524 mm
Izhevsk tram network
Russia
71 curves · 1524 mm · 227 trams
Boston Green Line (MBTA)
United States of America
70 curves · 1435 mm · 184 trams
Brandenburg an der Havel tramway
Germany
68 curves · 1000 mm
Görlitz tramway
Germany
68 curves · 1000 mm
Jinan tramway
People's Republic of China
68 curves · 1435 mm
Lipetsk tramway
Russia
68 curves · 1524 mm
Angarsk tramway
Russia
67 curves · 1524 mm
Sétif tramway
Algeria
67 curves · 1435 mm
Kamianske tramway
Ukraine
66 curves · 1524 mm
Saint-Etienne tramway
France
66 curves · 1000 mm
Constantine tramway
Algeria
64 curves · 1435 mm
Luxembourg City tramway
Luxembourg
64 curves · 1435 mm
Mykolaiv tramway
Ukraine
64 curves · 1524 mm
Szeged tramway
Hungary
64 curves · 1435 mm
Plzeň tramway
Czech Republic
63 curves · 1435 mm
Tenerife tramway
Spain
63 curves · 1435 mm
Częstochowa tramway
Poland
62 curves · 1435 mm
Doha (Education City campus) tramway
Qatar
62 curves · 1435 mm
İzmit (Kocaeli) tramway
Turkey
62 curves · 1435 mm
Mostaganem tramway
Algeria
62 curves · 1435 mm
Nagasaki tramway
Japan
62 curves · 1435 mm
Birmingham tramway
United Kingdom
61 curves · 1435 mm
Algiers tramway
Algeria
60 curves · 1435 mm
Lille tramway
France
60 curves · 1000 mm
Eskişehir tramway
Turkey
59 curves · 1000 mm
Hiroshima Electric Railway (Hiroden)
Japan
59 curves · 1435 mm · 271 trams
Galați tramway
Romania
58 curves · 1435 mm
Halberstadt tramway
Germany
58 curves · 1000 mm
Kayseri tramway
Turkey
58 curves · 1435 mm
Murcia tramway
Spain
58 curves · 1435 mm
Wuhan tramway
People's Republic of China
58 curves · 1435 mm
Yaroslavl tramway
Russia
58 curves · 1524 mm
Gmunden tramway
Austria
57 curves · 1000 mm
Irkutsk tramway
Russia
57 curves · 1524 mm
Sacramento tramway
United States of America
57 curves · 1435 mm
Tampere tramway
Finland
57 curves · 1435 mm
Ulan-Ude tramway
Russia
57 curves · 1524 mm
Biysk tramway
Russia
56 curves · 1524 mm
San Jose tramway
United States of America
56 curves · 1435 mm
Timișoara tramway
Romania
56 curves · 1435 mm
Liege tramway
Belgium
55 curves · 1000 mm
Granada tramway
Spain
54 curves · 1435 mm
Grudziądz tramway
Poland
54 curves · 1000 mm
Konotop tramway
Ukraine
54 curves · 1524 mm
Cluj-Napoca tramway
Romania
53 curves · 1435 mm
Kaohsiung tramway
Taiwan
53 curves · 1435 mm
Tokyo tramway
Japan
53 curves · 1372 mm
Dessau tramway
Germany
52 curves · 1000 mm
Minneapolis-Saint Paul tramway
United States of America
52 curves · 1435 mm
Baltimore tramway
United States of America
51 curves · 1435 mm
Guangzhou tramway
People's Republic of China
51 curves · 1435 mm
Guangzhou tramway
People's Republic of China
51 curves · 1435 mm
Most and Litvínov tramway
Czech Republic
51 curves · 1435 mm
Rouen tramway
France
51 curves · 1435 mm
Vitoria-Gasteiz tramway
Spain
51 curves · 1000 mm
Jersey City tramway
United States of America
50 curves · 1435 mm
Novocherkassk tramway
Russia
50 curves · 1524 mm
Vinnytsia tramway
Ukraine
50 curves · 1000 mm
Volzhsky tramway
Russia
50 curves · 1524 mm
Zaragoza tramway
Spain
50 curves · 1435 mm
Daugavpils tramway
Latvia
48 curves · 1524 mm
Olsztyn tramway
Poland
48 curves · 1435 mm
Gotha tramway
Germany
47 curves · 1000 mm
Chengdu tramway
People's Republic of China
46 curves · 1435 mm
St. Louis tramway
United States of America
46 curves · 1435 mm
Waterloo tramway
Canada
46 curves · 1435 mm
Odense tramway
Denmark
45 curves · 1435 mm
Tomsk tramway
Russia
45 curves · 1524 mm
New Orleans tramway
United States of America
44 curves · 1588 mm
Kolomna tramway
Russia
43 curves · 1524 mm
Pyatigorsk tramway
Russia
43 curves · 1000 mm
Debrecen tramway
Hungary
42 curves · 1435 mm
Detroit QLine
United States of America
42 curves · 1435 mm
Bilbao tramway
Spain
41 curves · 1000 mm
Kumamoto tramway
Japan
41 curves · 1435 mm
Messina tramway
Italy
41 curves · 1435 mm
Orel tramway
Russia
41 curves · 1524 mm
Achinsk tramway
Russia
40 curves · 1524 mm
Le Havre tramway
France
39 curves · 1435 mm
Osijek tramway
Croatia
39 curves · 1000 mm
Buenos Aires tramway
Argentina
38 curves · 1000 mm
Blackpool tramway
United Kingdom
37 curves · 1435 mm
Craiova tramway
Romania
37 curves · 1435 mm
Matsuyama tramway
Japan
37 curves · 1067 mm
Cadiz tramway
Spain
36 curves · 1668 mm
Nizhnekamsk tramway
Russia
36 curves · 1524 mm
Addis Ababa Light Rail
Ethiopia
35 curves · 1435 mm · 41 trams
Dalian tramway
People's Republic of China
35 curves · 1435 mm
Gorzów Wielkopolski tramway
Poland
35 curves · 1435 mm
Reșița tramway
Romania
35 curves · 1435 mm
Oran tramway
Algeria
34 curves · 1435 mm
Palermo tramway
Italy
34 curves · 1435 mm
Usolye-Sibirskoye tramway
Russia
34 curves · 1524 mm
Cagliari tramway
Italy
33 curves · 950 mm
Miskolc tramway
Hungary
33 curves · 1435 mm
Suzhou tramway
People's Republic of China
33 curves · 1435 mm
Charlotte tramway
United States of America
32 curves · 1435 mm
Huangshi tramway
People's Republic of China
32 curves · 1435 mm
Pavlodar tramway
Kazakhstan
32 curves · 1524 mm
Sidi Bel Abbès tramway
Algeria
32 curves · 1435 mm
St. Louis Loop Trolley
United States of America
32 curves · 1435 mm
Bursa tramway
Turkey
31 curves · 1435 mm
Osaka to Sakai tramway
Japan
31 curves · 1435 mm
Kagoshima tramway
Japan
30 curves · 1435 mm
Sydney Light Rail
Australia
30 curves · 1435 mm · 60 trams
Brăila tramway
Romania
29 curves · 1435 mm
Busan-Gimhae tramway
South Korea
29 curves · 1435 mm
Gaziantep tramway
Turkey
29 curves · 1435 mm
Kansas City Streetcar
United States of America
29 curves · 1435 mm
Memphis MATA Trolley
United States of America
28 curves · 1435 mm
Reims tramway
France
28 curves · 1435 mm
Takaoka tramway
Japan
28 curves · 1067 mm
Toyama tramway
Japan
28 curves · 1067 mm
Tucson tramway
United States of America
28 curves · 1435 mm
Trondheim tramway
Norway
27 curves · 1000 mm
Liepaja tramway
Latvia
26 curves · 1000 mm
Samarkand tramway
Uzbekistan
26 curves · 1000 mm
Sarajevo tramway
Bosnia and Herzegovina
26 curves · 1435 mm
Cuenca tramway
Ecuador
25 curves · 1000 mm
Norfolk tramway
United States of America
25 curves · 1435 mm
Aarhus tramway
Denmark
24 curves · 1435 mm
Nanjing tramway
People's Republic of China
24 curves · 1435 mm
Oklahoma City Streetcar
United States of America
24 curves · 1435 mm
Samsun tramway
Turkey
24 curves · 1435 mm
Cherepovets tramway
Russia
23 curves · 1524 mm
Avignon tramway
France
22 curves · 1435 mm
El Paso Streetcar
United States of America
22 curves · 1435 mm
Milwaukee Streetcar (The Hop)
United States of America
22 curves · 1435 mm
Ploiești tramway
Romania
22 curves · 1435 mm
Seoul (Gimpo) tramway
South Korea
21 curves · 1435 mm
Stary Oskol tramway
Russia
21 curves · 1524 mm
Aubagne tramway
France
20 curves · 1435 mm
Malaga tramway
Spain
20 curves · 1435 mm
Cleveland tramway
United States of America
19 curves · 1435 mm
Huai'an tramway
People's Republic of China
19 curves · 1435 mm
Mexico City tramway
Mexico
19 curves · 1000 mm
Mexico City tramway
Mexico
19 curves · 1000 mm
Ust-Kamenogorsk (Oskemen) tramway
Kazakhstan
19 curves · 1520 mm
Cincinnati Streetcar
United States of America
18 curves · 1435 mm
Novopolotsk tramway
Belarus
18 curves · 1524 mm
Salavat tramway
Russia
18 curves · 1524 mm
Tel Aviv metropolitan area (Dankal) tramway
Israel
17 curves · 1435 mm
Vladivostok tramway
Russia
17 curves · 1524 mm
Lund tramway
Sweden
16 curves · 1435 mm
Soller tramway
Spain
16 curves · 914 mm
Tacoma tramway
United States of America
16 curves · 1435 mm
Atlanta Streetcar
United States of America
15 curves · 1435 mm
New Taipei tramway
Taiwan
15 curves · 1435 mm
Little Rock Metro Streetcar
United States of America
15 curves · 1435 mm
Seville tramway
Spain
15 curves · 1435 mm
Zhytomyr tramway
Ukraine
14 curves · 1000 mm
Sapporo tramway
Japan
13 curves · 1067 mm
Tampa TECO Line Streetcar
United States of America
13 curves · 1435 mm
Kyoto to Otsu tramway
Japan
12 curves · 1435 mm
Okayama tramway
Japan
11 curves · 1067 mm
Sanya tramway
People's Republic of China
11 curves · 1435 mm
Buffalo tramway
United States of America
10 curves · 1435 mm
Guadalajara tramway
Mexico
10 curves · 1435 mm
Krasnoturinsk tramway
Russia
10 curves · 1524 mm
Mengzi tramway
People's Republic of China
10 curves · 1435 mm
Qiubei (Wenshan) tramway
People's Republic of China
10 curves · 1435 mm
Toyohashi tramway
Japan
10 curves · 1067 mm
Tokyo tramway
Japan
9 curves · 1372 mm
Seoul tramway
South Korea
9 curves · 1435 mm
Kenosha Streetcar
United States of America
7 curves · 1435 mm
Qingdao tramway
People's Republic of China
7 curves · 1435 mm
Bergamo tramway
Italy
4 curves · 1435 mm
Newcastle tramway
Australia
4 curves · 1435 mm
Kitakyushu to Nogata tramway
Japan
2 curves · 1435 mm
What the model reads
Geometry sets the risk. Conditioning decides the outcome.
A tight curve is not automatically a noisy one. A correctly conditioned network stays quiet through the same geometry that would otherwise squeal. So the atlas models risk, the likelihood of squeal from a network's shape, and leaves the outcome to how the interface is conditioned.
Track geometry
Curve radius and network layout, the physical shape that sets where squeal is most likely to arise.
Market data
Open network and operating data, combined with the geometry to model curve-squeal risk across a network.
Modelled, not measured
The atlas shows modelled risk, not measured results and not a claim about any named network. Risk is not the same as noise; conditioning decides that.
Track geometry © OpenStreetMap contributors, ODbL 1.0
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