Roadscape 3D Swept-Path
same swept-path logic * speed + curb + lane risk
Vehicle
Turn angle
90 deg
Turn radius
40 ft
Curb radius
22 ft
Speed
10 mph
Lane width
10.5 ft
Lane standard
10 ft narrow/local
10.5 ft city default
11 ft standard
12 ft truck/bus lane
Two-lane turn
Three-lane turn
Four-lane ramp turn
Curb standard
standard rounded curb - 6 in
vertical/block curb - 6 in
mountable truck apron - 3 in wide
rolled residential curb - 4 in
custom curb
Curb height
6 in
Curb width
1.4 ft
Speed control before turn
none
short speed hump - 3 in, 12 ft, 45 ft before
long speed table - 3.5 in, 22 ft, 60 ft before
raised crosswalk - 4 in, 30 ft, 75 ft before
truck-friendly table - 2.5 in, 30 ft before
custom control
Ready
Effective speed
10 mph
Curb/rub zone
0%
Adjacent exposure
clear
Rollover risk
low
Run vehicle
Auto run
Best safety
Start over
Back to Swept Path Pro
Use this turn in Swept Path Pro
Screening model: deterministic swept path plus simplified speed/curb/load risk. Official engineering or crash conclusions require qualified professional review.
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Roadscape * on-device browser sim