Roadway Design and Geometric Standards Flashcards
6 cards from real FDOT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Roadway Design and Geometric Standards flashcards as text
What FDOT document establishes geometric design standards for highways on the State Highway System?
Answer: FDOT Design Standards (formerly Standard Plans)
FDOT Design Standards (formerly Standard Plans) provides the official geometric and construction design standards for Florida's State Highway System.
What is the minimum design speed required for a principal arterial highway on Florida's State Highway System in an urban area?
Answer: 45 mph
FDOT requires a minimum design speed of 45 mph for principal arterials in urban areas, balancing safety with urban land use constraints.
According to FDOT standards, what is the standard lane width for through lanes on a principal arterial in Florida?
Answer: 12 feet
FDOT's standard lane width for through lanes on principal arterials is 12 feet, consistent with AASHTO and providing adequate clearance for vehicles.
What does 'superelevation' refer to in FDOT roadway geometric design?
Answer: The cross-slope of the roadway through horizontal curves to counteract centrifugal force
Superelevation is the banking of the road surface through horizontal curves, tilting the road to counteract centrifugal force and improve vehicle stability.
What is the maximum superelevation rate (e-max) FDOT typically uses for urban roadways?
Answer: 6%
FDOT limits maximum superelevation to 6% on urban roadways to accommodate the presence of intersections, driveways, and slower design speeds.
What FDOT index drawing governs the design of typical bicycle lane widths on state roads?
Answer: Index 17302
FDOT Index 17302 (or the current equivalent in the Design Standards) covers bicycle facility design standards including lane widths and markings.