IMSA Signs & Markings I case studies
IMSA Signs & Markings I · Put your knowledge to work in context.
IMSA Signs & Pavement Markings Technician I is the Technician I credential in IMSA's Signs and Markings certification track - one of five certification areas IMSA lists, alongside Work Zone Temporary Traffic Control, Traffic Signal, Roadway Lighting, and Fiber Optics. It is aimed at the people who actually put hardware in the ground and markings on the pavement: sign installers and fabricators, pavement marking applicators, maintenance and inspection crews, and newer traffic operations staff who must work confidently from the MUTCD and their agency's standard plans. The IMSA Signs & Markings I case studies are 5 cases and about 4,007 words.
1Plan Review: Which Manual Governs a 2003-Vintage Stop Sign Sheet
A consultant submits a 90% design package for reconstructing 3.2 miles of rural two-lane highway (posted 55 mph). The city has adopted the MUTCD by reference, and the state has a supplement that layers additional requirements on top of it.
843 words, about 4 min2Curve Sign Installation on a 55 mph Rural Route
A two-lane rural state route carries 55 mph traffic past a 600-ft-radius horizontal curve with a narrow 2-ft shoulder. A county crew is replacing a faded W1-2 curve sign and adding a W13-1P “35 MPH” advisory plaque on the same post.
815 words, about 4 min3Restriping a Four-Lane Arterial After Overlay
An urban four-lane arterial (40 mph, 12-ft lanes, no shoulder, curb and gutter) is milled and overlaid. The city restripes and adds a left-turn lane at a signalized intersection.
809 words, about 4 min4Retroreflectivity Management When the Inventory Dates Are Missing
A mid-size city maintains about 9,400 signs, a mix of Type I and Type III sheeting. Its written sign management plan uses the expected-sign-life method with a 12-year blanket replacement cycle.
776 words, about 4 min5One-Day Lane Closure on a 45 mph Arterial
A utility contractor must replace a water main valve in the curb lane of a 45 mph, four-lane undivided arterial with 12-ft lanes, curb and gutter, and an 8-ft sidewalk on the east side that carries a bus stop. The proposed traffic control plan puts cones at 40-ft spacing, a merging taper of 150 ft, an arrow board at the start of the taper, and three advance warning signs spaced 200 ft apart.
764 words, about 4 min