VATICAN CITY — The Vatican on Tuesday issued a "Ten Commandments" for motorists to keep them on the road to salvation, warning drivers against the sins of road rage, abuse of alcohol or even simple rudeness.

The unusual document from the Vatican's office for migrants and itinerant people also warned that automobiles can be "an occasion of sin" — particularly when used to make a dangerous passing maneuver or when used by prostitutes and their clients.

And it suggested prayer might come in handy — performing the sign of the cross before starting off and saying the rosary along the way. The rosary was particularly well-suited to recitation by all in the car, it said, since its "rhythm and gentle repetition does not distract the driver's attention."

Cardinal Renato Martino, who heads the office, told a news conference the Vatican felt it necessary to address the pastoral needs of motorists because driving has become such a big part of contemporary life.

He cited World Health Organization statistics that said an estimated 1.2 million people are killed in crashes each year.

He noted that the Bible was full of people on the move, including Mary and Joseph, the parents of Jesus — and that his office is tasked with dealing with all "itinerant" people on the roads — from refugees to prostitutes, truck drivers and the homeless.

The document, "Guidelines for the Pastoral Care of the Road," extols the benefits of driving — family outings, getting the sick to the hospital, allowing people to get to work and seeing other cultures.

But it laments a host of ills associated with automobiles: Drivers use their cars to show off; driving "provides an easy opportunity to dominate others" by speeding; and drivers can kill themselves and others if they drink, use drugs or fall asleep at the wheel.

It warned about the effects of road rage, saying driving can bring out "primitive" behavior in motorists, including "impoliteness, rude gestures, cursing, blasphemy, loss of sense of responsibility or deliberate infringement of the highway code."

It called for drivers to obey speed limits and to exercise a host of Christian virtues: charity to fellow drivers, prudence on the roads, hope of arriving safely and justice in the event of crashes.

Martino's initiative was sure to make headlines in Italy, where car culture is deeply entrenched this is the home of Ferrari and Fiat and where weekend highway deaths make the evening news on a regular basis.

The Rev. Keith Pecklers, a Jesuit professor of liturgy at the Pontifical Gregorian University in Rome, said Martino was clearly responding to an underreported social concern: an increase in traffic deaths in places like Italy and Spain because of speeding, as well as an increase in road rage, aggressive driving and DUI in places like the United States.

Martino has been known as something of a loose cannon in the past at the Vatican.