MEXICO CITY, Mexico (CNN)  -- Buses that carry women only are experiencing a smooth ride with passengers in Mexico's capital.



A woman rides on a bus exclusively for female passengers last month in Mexico City.



Fans of the new service call their daily commutes more pleasant now that bus rides steer clear of too-close-for-comfort contact with men.



"We're not just talking about sexual harassment, about rapes or about incidents of violence," said Ariadna Montiel, director of the Network of Passengers' Transportation for the Government of the Federal District.



"But also about touching, staring, which is what generally occurs on public transport."



The single-sex service, which started in January, is available on four major lines in the city, and it's expected to expand to another 15. Other plans include replacing male drivers with women.



One woman described the service as "excellent," saying it's "more comfortable too because it doesn't make as many stops."



Another passenger said she feels more comfortable and safer.



Last year, the government received seven complaints of sexual abuse aboard the city's buses, which provide 200 million rides each year, officials said.  Authorities said that a single complaint is enough to justify taking such measures.



Juan Flores, who has driven buses in Mexico City for 15 years and now steers one for women only, said he even notices a difference.



"I feel more tranquil, I work more peacefully and the interior of the bus is cleaner," he said. E-mail to a friend



CNN's Mario Gonzalez contributed to this report.
Who did the complaining? when was 7 complaints made where is the service available What number of major lines is the single-sex service available on? What do passengers on female only buses describe their commutes as being? What was the number of reports of sexual assaults on buses made last year? What did they complain about? Where were the complaints made to? Where did the sexual abuse take place? Are their plans to expand single-sex services? What buses provide the most pleasant commutes? Where is single-sex service available? Where is the service available? What do passengers describe their commutes as?
women Last year, Mexico City. four more pleasant now that bus rides steer clear of too-close-for-comfort contact with men. seven sexual abuse aboard government aboard the city's buses, expected that carry women only MEXICO CITY, MEXICO CITY, more pleasant now that bus rides steer clear of too-close-for-comfort contact with men.
question: Who did the complaining?, answer: women | question: when was 7 complaints made, answer: Last year, | question: where is the service available, answer: Mexico City. | question: What number of major lines is the single-sex service available on?, answer: four | question: What do passengers on female only buses describe their commutes as being?, answer: more pleasant now that bus rides steer clear of too-close-for-comfort contact with men. | question: What was the number of reports of sexual assaults on buses made last year?, answer: seven | question: What did they complain about?, answer: sexual abuse aboard | question: Where were the complaints made to?, answer: government | question: Where did the sexual abuse take place?, answer: aboard the city's buses, | question: Are their plans to expand single-sex services?, answer: expected | question: What buses provide the most pleasant commutes?, answer: that carry women only | question: Where is single-sex service available?, answer: MEXICO CITY, | question: Where is the service available?, answer: MEXICO CITY, | question: What do passengers describe their commutes as?, answer: more pleasant now that bus rides steer clear of too-close-for-comfort contact with men.