Cathy Chin, an Upper West Side mother, delights in wheeling her 11-month-old son, Benjamin, in his stroller in Central Park. But she has found that crossing Broadway to get there can be a nightmare because the traffic lights do not give her enough time to push her baby safely across the street.

Kit Templar, an Upper East Side parent who is on maternity leave to care for her infant, Jack, sometimes has to jump her Bugaboo stroller up and down unmatched curb cuts and struggles on sidewalks with uneven pavement.

Mike Dowd, a father of two who lives in Prospect Heights, Brooklyn, has had his share of close calls when carting his sons, now 7 and 3, in strollers across their neighborhood's avenues, where cars scream by at breakneck speed. "If I have one hand on a stroller and another hand on a child's hand," he pointed out, "I'm really not that mobile to jump out of the way."

These sentiments were echoed by hundreds of parents and caregivers in the New York Stroller Report Card, an evaluation of stroller-pushing conditions in the city. The report card, based on a survey conducted by Transportation Alternatives, an advocacy group for cyclists and pedestrians, will be released this week and is based on responses collected from 920 parents and nannies over two months last summer.

According to a preliminary version of the report, most parents and nannies found sidewalk and street conditions generally suitable for strollers. But 20 percent of respondents said that pushing a stroller around their neighborhoods was difficult, and 86 percent said they avoided certain streets.

Results also differed by borough. Sixty-four percent of people in Manhattan and 66 percent in Queens said their biggest fear was drivers making dangerous turns. In Brooklyn, the problem most often mentioned was "uneven or rough pavement."

Tresa Horney, director of the pedestrian advocacy campaign at Transportation Alternatives, said she was struck by the similarity between problems reported by stroller pushers and those often reported by the elderly. "Not having curb cuts, cracks in the sidewalk, and of course, dangerous-turning drivers are huge problems for both of these populations," she said.

For Mr. Dowd, the father of two, the issue of safe stroller pushing is so critical, he is leading a "traffic calming" effort to make his neighborhood safer for precious cargo on four wheels. "On the sidewalk, people are friendly," he said. "If you go into the subway, they help you down the stairs. But crossing the street, you don't get that same respect. I don't feel that we should have to risk our children's lives just to get around the neighborhood."