You need to determine the guardrail that is needed to protect the motorist around a cantilever sign support on an interstate. Given the information below, design the approach guardrail section prior to the cantilever sign support and show calculations: Given: ADT = 25,000 vpd Posted Speed Limit = 70 mph 8 paved shoulder Embankment Slope = 1V:5H Shoulder slope = 1V:6H Use Flare end section Find: LC La Lr L1 L2 Flare Rate X (length of guardrail prior to columns) Y (Lateral offset at the start of the guardrail) Total length of guardrail required (end to end) .0 4 CANTILEVER SIGN SUPPORT 16 9 PAVED SHOULDER 12' LANE 12' LANE - A 60 MEDTAN WHEABLE GUIDE RAH You need to determine the guardrail that is needed to protect the motorist around a cantilever sign support on an interstate. Given the information below, design the approach guardrail section prior to the cantilever sign support and show calculations: Given: ADT = 25,000 vpd Posted Speed Limit = 70 mph 8 paved shoulder Embankment Slope = 1V:5H Shoulder slope = 1V:6H Use Flare end section Find: LC La Lr L1 L2 Flare Rate X (length of guardrail prior to columns) Y (Lateral offset at the start of the guardrail) Total length of guardrail required (end to end) .0 4 CANTILEVER SIGN SUPPORT 16 9 PAVED SHOULDER 12' LANE 12' LANE - A 60 MEDTAN WHEABLE GUIDE RAH