Zipper merging reduces backups by up to 50% during lane closures statewide. The method uses both lanes fully and merges vehicles alternately at lane ends. WSDOT urges drivers to plan, maintain speed ...

Q: At a freeway on-ramp, is it illegal to merge early by driving across the white lines before the lanes merge, or is it just discouraged? If it's illegal, what law would you be breaking? A: You won't ...

Why have a long line of drivers next to an empty lane? When we lived in San Diego, they actually had public service announcements to this effect. It makes sense to wait until the last minute and take ...