Zipcar calculates that its carsharing service has taken over 413,000 cars off roads in about 500 cities.

The company recently hit the one million membership mark after 16 years in business. Now owned by Avis Budget Group, the company said it serves over 500 cities in eight countries located in North America and Europe.

Zipcar did the numbers through its annual member survey, which found that nearly 10 percent get rid of a car after joining the carsharing service. Of the survey respondents, 32 percent said they would have purchased a vehicle if they hadn’t joined up with Zipcar. That comes out to 413,000 less vehicles on roads, reducing potential traffic and parking problems in the markets Zipcar serves, the company said.

SEE ALSO:  Volkswagen Partners With Zipcar

When Avis Budget Group bought Zipcar in 2013 for $500 million, the largest carsharing company had 760,000 members. The company said that it passed the one-million milestone while gaining double-digit growth in new members for the past two years.

Zipcar has been trying out new services to stay competitive as Car2Go has expanded and ride-hailing companies Uber and Lyft have gained a larger audience. Zipcar got into one-way rentals in late 2014. This summer, Zipcar started testing out per-mile pricing in a few U.S. cities. That program offers a weekday hourly rate around $4.50 plus a fee of 50 cents per mile.