AREA C: daily accesses 2013 divided by environmental class of belonging

The dataset shows, for the year 2013, the total daily entrances recorded by the cameras placed on the entrance gates to area C (https://www.comune.milano.it/aree-tematiche/mobilita/area-c ), divided by environmental class of belonging (EURO0, EURO1, EURO2, EURO3, EURO4, EURO5, EURO6, NC = not classified). The field *areac* if valued at 1 indicates that Area C was active at the time of monitoring, if valued at 0 indicates Area C not active本数据集展示了2013年的监测数据：部署于C区（Area C，官方说明详见https://www.comune.milano.it/aree-tematiche/mobilita/area-c）入口闸机的摄像头所记录的每日经闸机进入C区的车辆总流量，并按车辆所属的排放标准等级（EURO0、EURO1、EURO2、EURO3、EURO4、EURO5、EURO6、NC=未分类）进行分组统计。其中字段*areac*取值为1时，表示监测时段内C区处于启用状态；取值为0时则表示C区未启用。