Waiting time by train connecting to Saint-Pierre-des-Corps from/to Tours

### Problem Studyed This dataset lists all trains departing or arriving from Saint-Pierre-des-Corps over a day, and highlights the waiting time with trains to or from Tours. #### Scenario Go The one-way scenario considers the situation where the passenger departs from Tours and makes a connection to Saint-Pierre-des-Corps for another train, i.e.:  1. Take a train from Tours to Saint-Pierre-des-Corps (called "train liaison" in the dataset) 2. Waiting at Saint-Pierre des Corps 3. Take another train (called "target train") from Saint-Pierre-des-Corps to another destination, except for trains in reverse that serve Tours We then calculate the waiting time with the *last* connecting train (shuttle, TGV or TER) arriving in Saint-Pierre-des-Corps at least 5 minutes before the departure of the target train (15 minutes before the departure of the target train for Ouigo or Ouigo Train Classique), in accordance with the waiting times proposed on the approved booking sites (1.2.Train, SNCF Connect, etc.). > Example: > > I want to take an INOUI TGV in Saint-Pierre-des-Corps at 09:05 for Bordeaux.\ > I leave Tours and my TGV INOUI does not go through Tours.\ > What is the last train from Tours to Saint-Pierre-des-Corps arriving at least 5 minutes before the departure of my TGV INOUI? (i.e. arriving at 09:00 at the latest)\ > In Saint-Pierre-des-Corps, what will be my waiting time between the arrival of my train from Tours and the departure of my INOUI TGV to Bordeaux? #### Scenario Back The return scenario considers the case where the passenger takes any train arriving at Saint-Pierre-des-Corps, and changes to Saint-Pierre-des-Corps for a train to Tours, more specifically:  1. Take a target train from any origin and serving Saint-Pierre-des-Corps, except trains from Tours 2. Waiting at Saint-Pierre des Corps 3. Take a "link" train to Tours We then calculate the waiting time between the arrival of the target train at Saint-Pierre-des-Corps, and the departure of the *first* link train for Tours leaving at least 5 minutes after the arrival of the target train. > Example: > > I take a TGV INOUI from La Rochelle which arrives in Saint-Pierre-des-Corps at 12:00.\ > I want to go to Tours.\ > What is the first train from Saint-Pierre-des-Corps to Tours leaving at least 5 minutes after the arrival of my TGV INOUI? (from 12:05)\ > In Saint-Pierre-des-Corps, what will be my waiting time between the arrival of my INOUI TGV from La Rochelle and the departure of my train to Tours? ### Documentation The data is cut by file for different days of the week and in each direction (outward or return). Each line in the file lists the trains departing (meaning "outbound") or arriving (meaning "return") from Saint-Pierre-des-Corps, and the associated connecting train to connect Saint-Pierre-des-Corps and Tours.\ In addition to train information (number, direction, line, network, timetables), the file contains the following fields: * **Correspondence time (minutes):** the waiting time between the arrival of the connecting train at Saint-Pierre-des-Corps, and the departure of the target train (or vice versa) * **Travel type** **:** Several possible values: * **Correspondence** **:** A change is required at Saint-Pierre-des-Corps station * **Direct** **:** If the target train leaves or arrives from Tours via Saint-Pierre-des-Corps, there is no need to make a connection at Saint-Pierre-des-Corps. (The 5-minute constraint does not apply) * **No Train Link:** There is no train that allows you to reach Saint-Pierre-des-Corps (meaning to go, in the morning) or to leave Saint-Pierre-des-Corps (meaning to return, in the evening). This situation does not currently appear in the case of Tours - Saint-Pierre-des-Corps ### Data source These data were calculated by a Python script (forthcoming publication) from train departure and arrival data provided by [API SNCF](https://www.data.gouv.fr/datasets/api-theoretical-and-time-reel-sncf/). Data from the SNCF API are published under an Open License.