at is the station (3 dp) of point "d" in the profile shown for a 2000 m radius horizontal curve on a 4-lane al road designed at a design speed of 120 km/hr, normal crown of 2%, Beginning of circular curve station = 17.46, and maximum superelevation of 8%. The adopted method of superelevation development is 2. ort the station as the distance in meters. е: erelevation development method 1 = 60/40 Rule erelevation development method 2 = Use of transition or spiral curve outside edge of pavement E profile e inside edge of pavement normal crown adverse crown removed full | c superelevation crown rate E profile
at is the station (3 dp) of point "d" in the profile shown for a 2000 m radius horizontal curve on a 4-lane al road designed at a design speed of 120 km/hr, normal crown of 2%, Beginning of circular curve station = 17.46, and maximum superelevation of 8%. The adopted method of superelevation development is 2. ort the station as the distance in meters. е: erelevation development method 1 = 60/40 Rule erelevation development method 2 = Use of transition or spiral curve outside edge of pavement E profile e inside edge of pavement normal crown adverse crown removed full | c superelevation crown rate E profile
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:What is the station (3 dp) of point "d" in the profile shown for a 2000m radius horizontal curve on a 4-lane
rural road designed at a design speed of 120 km/hr, normal crown of 2%, Beginning of circular curve station =
3+117.46, and maximum superelevation of 8%. The adopted method of superelevation development is 2.
Report the station as the distance in meters.
Note:
Superelevation development method 1 = 60/40 Rule
%3D
Superelevation development method 2 = Use of transition or spiral curve
outside edge
of pavement
e
+--- £ profile
e
inside edge
of pavement
adverse crown
removed
full | c
superelevation
normal
crown
rate
crown
E profile
control
pavement revolved about
centreline
C.
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