Definition of "on-ramp" []

• A segment of roadway that directs vehicular traffic from ordinary roads onto a freeway (noun)

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• "Summer jobs provide young people a critical on-ramp to the road towards responsibility, community, work ethic, stability and economic self-sufficiency."
• "Things improved coasting downhill, but when I accelerated up the on-ramp to merge with traffic, my real-time fuel economy dipped below 10 mpg."
• "I made what I thought was a rather artful multiple-lane-change to access a very necessary and poorly signed (imagine ....) on-ramp."