Litter Index

The Community Appearance Index, also known as the Litter Index, is a tool designed by Keep America Beautiful to visually evaluate the overall appearance of a community using litter as an indicator. Every year, 60 routes throughout the five wards of Norfolk are analyzed to determine the cleanliness of the city. After a thorough training, a team of volunteers conduct the analysis using a scoring system ranging from 1-4 with “1” indicating minimal to no litter and “4” indicating extremely littered. Methodology for this process includes recruiting volunteers who commit to attend a one-and-a-half-day Community Appearance Index scan. Each volunteer is thoroughly trained on the index to accurately and consistently survey a statistical sample of the city. The results of the scan are then averaged to produce the City of Norfolk Community Appearance Index score.

This dataset is updated annually; the data begins in 2010. The Litter Index survey is normally conducted in August; the 2020 survey will be delayed due to COVID-19.

社区外观指数（亦称垃圾指数），系由美国美丽美国组织（Keep America Beautiful）设计的一项工具，旨在通过视觉评估垃圾作为指标来衡量社区的总体外观。每年，诺福克市五个区段的60条路线均会进行分析，以确定城市的清洁程度。经过彻底的训练后，一支志愿者团队采用1至4分的评分系统进行评估，其中“1”代表极少量或无垃圾，“4”代表垃圾极为严重。该过程的方法论包括招募承诺参加为期一天的半日社区外观指数扫描的志愿者。每位志愿者都会接受全面培训，以确保能够准确且一致地对城市的统计样本进行评估。扫描结果随后平均计算，以产生诺福克市社区外观指数得分。该数据集每年更新一次；数据始于2010年。垃圾指数调查通常在八月进行；由于COVID-19的影响，2020年的调查将推迟。