Metropolitano de Lisboa GTFS

Metropolitano de Lisboa GTFS (General Transit Feed Specification) data regarding Lisbon's subway system. Components: agency.txt: Baseline information about Metropolitano de Lisboa, including the agency's name, website URL, and timezone. routes.txt: Defines the transit routes. A route is a group of trips that are displayed to riders as a single service. It includes the route's ID, name, type, etc. trips.txt: Defines individual trips for each route. A trip represents a journey made by a vehicle along a route at a specific time. This file links the routes to the calendar scheduling and the physical shapes. stops.txt: Defines the individual locations where vehicles pick up or drop off passengers. It includes the precise latitude and longitude coordinates for each stop. stop_times.txt: Lists the exact arrival and departure times for a vehicle at individual stops for every trip defined in trips.txt. calendar.txt: Defines the regular weekly scheduling. It specifies which days of the week (Monday-Sunday) a particular transit service operates, using "service IDs", along with the start and end dates for that schedule to be valid. calendar_dates.txt: Defines exceptions to the regular schedule found in calendar.txt. For example, it dictates if a service is cancelled on a specific holiday, or if a special extra service is running on a unique date. shapes.txt: Defines the physical, geographic paths that vehicles take on their routes. It consists of sequences of GPS coordinates, enabling maps to draw the exact path the vehicle travels instead of just straight lines between stops. frequencies.txt: Used for services that run at regular intervals (headways) rather than strict fixed timetables lines.txt: Non-standard extension used to group multiple distinct routes into larger administrative "lines". metro_map.txt: Custom geometry data specifically used for rendering a visual map of the Lisbon Metro network.里斯本大都会区通用交通馈送规范（General Transit Feed Specification，GTFS）数据集，涵盖里斯本地铁系统相关数据。 数据集组成文件： agency.txt：机构基础信息文件，包含里斯本大都会交通机构的名称、网站网址及时区。 routes.txt：线路定义文件，用于定义公共交通线路。线路指向乘客展示为单一服务的一组行程，包含线路ID、名称、类型等信息。 trips.txt：行程定义文件，用于定义每条线路的单个行程。行程指车辆沿线路在特定时段完成的一趟旅程，该文件将线路与时刻表调度及实体路径相关联。 stops.txt：站点定义文件，用于定义车辆停靠上下客的单个站点位置，包含每个站点的精确纬度与经度坐标。 stop_times.txt：站点时刻列表文件，列出trips.txt中定义的每个行程内，车辆在各站点的准确到达与出发时刻。 calendar.txt：常规周度调度文件，定义固定的每周运营计划。通过“服务ID”指定特定公共交通服务的运营星期几（周一至周日），并标注该调度计划有效的起始与结束日期。 calendar_dates.txt：调度例外文件，用于定义calendar.txt中常规调度计划的例外情况，例如指定某节假日取消服务，或在特定日期新增临时额外班次。 shapes.txt：路径几何定义文件，用于定义车辆在线路上行驶的实体地理路径，由一系列GPS坐标序列组成，可支持地图绘制车辆行驶的精确路径，而非仅绘制站点间的直线连接。 frequencies.txt：班次频率文件，适用于采用固定发车间隔而非严格固定时刻表的服务。 lines.txt：线路组扩展文件（非标准扩展项），用于将多条独立线路整合为更大的行政“线路组”。 metro_map.txt：地铁地图渲染定制文件，专为渲染里斯本地铁网络可视化地图提供几何数据。