To safely enter highway traffic, what gap do you need?

To safely enter highway traffic, a four-second gap is recommended to ensure adequate time and space to merge without disrupting the flow of traffic. This substantial gap allows a driver to gauge the speed and distance of oncoming vehicles, giving an extra cushion of safety during the merging process.

Entering highway traffic typically involves acceleration to match the speed of vehicles already on the highway, and having a longer gap provides not only time to judge these variables but also the opportunity to maneuver smoothly and confidently. This is especially important given that highway speeds are often much higher than those on local roads. A four-second gap helps to accommodate any last-minute adjustments or changes in the speed of approaching vehicles, making the merging process safer for everyone involved.