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Single carriageway - Wikipedia
Lane - Wikipedia
Single-track road - Wikipedia
Numbering of Freeway Lanes in California
What are the Different Lane Positions on the Highway? - Safe2Drive
Section 6: Navigating the Roads - California DMV
What is meant by a "two-lane" road? - English Language & Usage …
Numbers Every Traffic Engineer Should Know - Mike on Traffic
Overnight lane closures of Highway 1 in Capitola begins Sunday, …
Lane Width - Federal Highway Administration