During the strike, only cars with at least four passengers were allowed into Manhattan from 5 a.m. to 11 a.m., according to the city, making it almost imperative for commuters to find others to share rides.

Peter Rose, a spokesman for securities firm Goldman Sachs & Co., said workers who are able to telecommute have worked out arrangements with their managers, while others are getting into work on private buses hired by the company.

Also helping employees are special Web sites set up by Goldman Sachs to organize carpooling and to provide the latest information on the strike and on alternative transportation methods, including ferries that serve Manhattan, Rose said.

The company, which has about 9,000 workers in the city, also arranged special storage areas for employees who have been riding their bikes into work, he said.

Toby Usnik, a spokesman for The New York Times, said the newspaper's approximately 2,500 employees have also been getting rides to and from work on special shuttle buses provided by the company, while some workers are telecommuting if possible.