Transportation / Civil · MUTCD 2023 §3J.03
Island Designation by Pavement Markings
Islands formed by markings: white channelizing lines for the same direction, yellow for opposing flows; a flush median uses two sets of double solid yellow lines with yellow diagonals.. Referenced to MUTCD 2023 §3J.03.
The full text is for BuildSpec members
Read the complete section, search across every adopted code, run the calculators and ask Copilot — free for 14 days, no card required.
- The annotated detail diagram with dimension callouts
- The code section it illustrates, in full
- Related diagrams in the same category
- Download and insert into a project
No card required. After the 14-day trial, plans start at $29/mo.
Our previews are real data — live counts, no placeholders. We publish our error log →