Pittsburgh Mayor Luke Ravenstahl arrived in Chicago yesterday on a two-day mission to study public safety and development strategies that features a meeting this morning with Mayor Richard M. Daley.

Mr. Daley saw Mr. Ravenstahl on "The Late Show With David Letterman" in September, said Pittsburgh mayoral spokesman Dick Skrinjar. Mr. Daley "thought he would volunteer to sit and talk with him, give him a hand, counsel him."

Yesterday's focus was public safety, Mr. Skrinjar said.

Mr. Ravenstahl will meet with development officials today. He is accompanied by Jerome Dettore, executive director of the Urban Redevelopment Authority, Planning Director Pat Ford and Neighborhoods Coordinator Kim Graziani.

Mr. Ravenstahl is scheduled to meet with George Ranney, president and Chief Executive Officer of Chicago Metropolis 2020, a nonprofit organization leading a 10-year-old effort to chart a course for the nation's third-largest city and its six-county, 7.7 million-resident region. It has focused on encouraging regional cooperation, development planning and early childhood education.

"It will be a broader conversation on the need for planning, the need to focus on transit, the harmful effects of sprawl" and other issues including urban education, said Jack Davis, vice president of Chicago Metropolis 2020. "We'll see what the mayor wants to talk about, and we'll help him out any way we can."

The mayor is expected to return late tonight.

Mr. Skrinjar said the city is not paying for the trip, but he did not know whether it was being covered by the URA or private funds.