When you enter an Interstate from an entrance ramp, you should:

Entering an Interstate is the responsibility of the merging driver, not the Interstate traffic. Use the on-ramp's acceleration lane (also called the 'merge lane') to bring your speed up to match prevailing Interstate traffic — usually 60-70 mph. Signal early, check mirrors and blind spots, find a safe gap, and merge smoothly. Stopping at the end of an on-ramp is dangerous: you must then accelerate from zero into fast-moving traffic, which is much harder and more likely to cause a collision. Interstate traffic has the right of way and is not required to slow for you. If the merge lane is too short to reach Interstate speed, drive as fast as safely possible and wait for a clear gap.