Police patrolling the Georgetown area of the District last night said crowds were more orderly and traffic was flowing smoothly as a special program aimed at reducing street crime there moved into its second week.

D.C. Police Capt. Rod Murray, head of the Georgetown detail, said his officers' efforts last weekend "had a good effect. The crowds are more orderly; they have toned down a lot."

Murray said there had been "steady towing since 8 p.m." along Wisconsin Avenue between K and O streets NW and along M Street from 29th Street to Key Bridge.

A total of 42 cars had been towed in that operation by about 11 p.m., and Murray said officers were beginning to concentrate on parking violations along side streets. Two persons had been arrested, Murray said.

The increased enforcement of parking regulations and a parking ban were instituted because large groups of young people were using cars parked along the major thoroughfares as the centers for large, unruly "tailgate" parties that were blocking traffic.

Police, business owners and community leaders also blamed the large crowds of young people for an increase in street crime and assaults in the area of restaurants and nightspots.

Officials said that part of the area's attraction is the District's 18-year-old age for drinking beer, which is lower than the drinking age in Virginia and Maryland.

Last night, Alcohol Beverage Control inspectors were in the Georgetown area checking on possible underage revelers, Murray said.

Parking restrictions are in effect along portions of Wisconsin Avenue and M Street NW from 6:30 p.m. Fridays until 4 a.m. Saturdays and from 6:30 p.m. Saturdays until 4 a.m. Sundays. They will continue in effect through the summer, according to police.