was there any record of crime happened at this park?
No, "The New York Times" reported that there had been no reports of major crimes (such as assault or robbery) since the first phase opened.
High Line
Shortly after the second section opened in 2011, "The New York Times" reported that there had been no reports of major crimes (such as assault or robbery) since the first phase opened two years earlier. 
how long does it take to walk the new york highline UNANSWERABLE what is this high line? It is an elevated linear park, greenway and rail trail created on a former New York Central Railroad spur on the west side of Manhattan in New York City. what interesting features does this part have? UNANSWERABLE is the park mentioned in any form of art? Yes, in "Manhattan" (film), "Close (to the Edit)" (music video), and "Walking the High Line" (book).
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High Line [SEP] Crime
Crime has been low in the park. Shortly after the second section opened in 2011, "The New York Times" reported that there had been no reports of major crimes (such as assault or robbery) since the first phase opened two years earlier. Parks Enforcement Patrols have written summonses for infractions of park rules such as walking dogs or riding bicycles on the walkway at a lower rate than in Central Park. Park advocates attributed this to the visibility of the High Line from surrounding buildings, a feature of urban life espoused by author Jane Jacobs nearly fifty years before. According to Joshua David, "Empty parks are dangerous ...