Zipcar has announced that it has exceeded the million member milestone with operations in more than 500 cities and towns in eight countries across the globe.

As a result of Zipcar's global membership in eight countries, more than 413,000 vehicles are not on city streets, significantly reducing the potential congestion and parking challenges in the over 500 cities and towns in which Zipcar operates, according to the company.

"For the past 16 years, Zipcar has been driven by its vision of a world where car sharers outnumber car owners," said Andrew Daley, Zipcar’s vice president of marketing. "While we're pleased to have hit the million member milestone, Zipcar views success by the collective impact our community of a million members have had on the globe. With fewer cars on the road, cities can build more green space, reduce parking and congestion challenges, and overall create a better place to live."

Over the past few years, Zipcar has expanded to a wider network of locations across the globe, launched its one-way and inter-city service options in select markets, unveiled a join and drive process for members, and will launch a new Zipcar free-floating carsharing model this fall, according to the company.