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GT 100 Roads 2026
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WIDTH
under 3 m
3–5.5 m
5.5–13 m
13–19.5 m
over 19.5 m
Narrow → Wide (width)
© OpenStreetMap contributors / others
TECHNICAL
国道18号テクニカル区間
Kanto · Gunma, Nagano
No.24500
GT SCORE
80
GT SCORE
80
An absolute rating of the road itself
LENGTH
15.0
km
ELEVATION RANGE
580
m
CORNERS PER KM
8.1
/km
SIGNALS PER KM
0.0
/km
LENGTH
15.0
km
ELEVATION RANGE
580
m
CORNERS PER KM
8.1
/km
SIGNALS PER KM
0.0
/km
TYPICAL WIDTH
5.5–13 m
STOPS
4
ROAD WIDTH BREAKDOWN
Narrow
5.5–13 m: 98%
Wide
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STOPS ALONG THIS ROAD
P
駐車場2-国道18号テクニカル区間
1 m
P
駐車場3-国道18号テクニカル区間
18 m
P
めがね橋駐車場
22 m
P
駐車場1-国道18号テクニカル区間
69 m