{'fraction_non_alphanumeric': 0.014943960149439602, 'fraction_numerical': 0.0, 'mean_word_length': 5.7, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Research on the system planning of disaster-prevention parks in old districts of Zhengzhou city

Zhengzhou is the important traffic and communications center, and the famous businesscenter. Once the earthquake disaster was happened, the communication and transport, economic development of the whole nation would be threatened. The disaster prevention park is an important component in urban system of disaster prevention and reduction. This paper analyzes the existing problems on the construction of disaster prevention parks in old districts of zhengzhou city, and proposes suggestion on perfecting the system planning of disaster prevention parks, and rebuilding the existing parks, hopes to maximize disaster prevention functions of urban parks, enhance the ability to resist disaster of Zhengzhou.