义乌开元南街与永泰路车流量交通指数数据

主要包括开元南街与永泰路路口车各方向流量数据由车辆进出检测区域统计而来，根据进出数据控制交通信号的实时调度。用途：1. 为实现后期重新划分时段，调整时段时间以及当前时段绿信比（指信号灯周期内可用于车辆通行的绿灯时间与整个周期时间的比例）提供原始数据；1）工作日周二~周四：根据各方向前两天车流量数据，与路口设计饱和流量值比值，分区段划分时段；2）工作日周一和周五~周日：根据各方向前两周周一当天车流量数据，与路口设计饱和流量值比值，分区段划分时段；2. 根据各时间段流量，可计算车道时间占有率，并可估算车道空间占有率和车头时距；3. 提供交通部门决策所需的路口交通流量，车道占有率等数据。1.数据来源：①交通流量（即流量检测线圈的车辆总和）：去向、左转、直行等可通过软件后台监测收集得到，来向需通过测算得到；②饱和流量（即10分钟最大能通过的数量）：根据以往测算可知，为固定值。③来向、去向交通指数需通过计算。 2.数据处理及应用：来向交通流量（a1）=左转交通流量（a3）+直行交通流量（a4）+右转交通流量（a5）；去向交通流量(a2)；来向交通指数=a1/1476*X；去向交通指数=a2/776*X(X指数区间值为1-3之间)， 通过分析来向、去向交通指数，可优化红绿灯时间提供参考依据，提高通行效率，从而可持续发展。

This dataset mainly covers traffic flow data of each direction at the intersection of Kaiyuan South Street and Yongtai Road. The data is collected by counting vehicles passing in and out of the detection area, and can be used for real-time scheduling of traffic signals based on the in-out and out-in data.

Applications:
1. Provide original data for the later work of re-dividing time periods, adjusting the duration of time periods and the green split ratio of current time periods (green split ratio refers to the ratio of the green time available for vehicle passage within a signal light cycle to the total cycle time):
1) For weekdays from Tuesday to Thursday: Divide time periods by sections based on the ratio of the traffic flow data of each direction in the previous two days to the designed saturation flow value of the intersection;
2) For Monday, Friday to Sunday of weekdays: Divide time periods by sections based on the ratio of the traffic flow data of each direction on the Monday of the previous two weeks to the designed saturation flow value of the intersection;
2. Based on the traffic flow of each time period, lane time occupancy can be calculated, and lane space occupancy and headway can be estimated;
3. Provide required data such as intersection traffic flow and lane occupancy for decision-making of traffic departments.

1. Data Sources:
① Traffic flow (i.e., the total number of vehicles detected by flow detection loops): Outbound, left-turn, straight-going and other flows can be collected through background monitoring of the software, while inbound flow needs to be calculated;
② Saturation flow (i.e., the maximum number of vehicles that can pass within 10 minutes): It is a fixed value based on previous calculations;
③ Inbound and outbound traffic indexes need to be calculated.

2. Data Processing and Application:
Inbound traffic flow (a1) = left-turn traffic flow (a3) + straight-going traffic flow (a4) + right-turn traffic flow (a5); Outbound traffic flow (a2);
Inbound traffic index = a1/1476 * X; Outbound traffic index = a2/776 * X (the value range of X is between 1 and 3).
By analyzing the inbound and outbound traffic indexes, reference basis can be provided for optimizing traffic light timing, improving traffic efficiency and achieving sustainable development.