Fertagus GTFS

Fertagus GTFS (General Transit Feed Specification) data regarding train service across the 25 de Abril bridge. 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.本数据集为Fertagus通用交通馈送规范（General Transit Feed Specification，GTFS）数据，涵盖横跨25 de Abril大桥的列车运营相关内容。 数据集组成： agency.txt：包含里斯本大都会交通公司（Metropolitano de Lisboa）的基础运营信息，涵盖机构名称、官方网站网址及时区信息。 routes.txt：定义公共交通线路。线路指以单一服务形式向乘客展示的一组行程，包含线路编号、名称、类型等信息。 trips.txt：定义每条线路的单次行程。单次行程指车辆在特定时间沿对应线路完成的一趟旅程，该文件可实现线路与排班计划及实际运行路径的关联。 stops.txt：定义车辆停靠上下客的具体站点，包含每个站点的精确经纬度坐标。 stop_times.txt：列出trips.txt中定义的所有行程内，车辆抵达及驶离各站点的精确时间。 calendar.txt：定义常规周度排班计划，通过“服务编号”指定特定交通服务的每周运营日期（周一至周日），并标注该排班计划的生效起始与终止日期。 calendar_dates.txt：定义针对calendar.txt中常规排班计划的例外情况，例如指定某节假日是否取消特定服务，或是在特殊日期增设临时班次。 shapes.txt：定义车辆在线路上行驶的实际地理路径，由一系列GPS坐标点组成，可支持地图绘制车辆的精确行驶轨迹，而非仅呈现停靠站点间的直线连线。 frequencies.txt：适用于以固定发车间隔（而非严格固定时刻表）运行的交通服务。