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      Analysing the Proposed BL1 Superloop Extension: A Step-by-Step Tutorial (Part 1)

      In part 1 of this tutorial we will analyse Transport for London's (TfL) proposed extension to the Superloop; drawing the route pattern, creating trips, and analysing walking catchment using the isochrone tool

      BL1_Superloop_Expansion

      This tutorial is presented in 8 easy-to-follow steps, and provides you with all the necessary datasets to follow along in your own Podaris project.

      To follow these steps, you will need to download the following 2 files:

      Each step contains video-based instructions, and a summary of the key steps contained in the video listed below it.

      Step 1 - Creating a new project

      Summary of steps:

      1. In the Projects page, select the "+ New" button
      2. Select Project
      3. Choose the blank template option
      4. In the project settings: select bus as the default mode; keep the privacy set to private; and set the location to Waterloo station
      5. Give your project a suitable name

       

      Step 2 - Importing the BL1 bus stops

      Summary of steps:

      1. Open the Layers panel
      2. In the Transport section, click the import button
      3. Drag and drop the BL1 stations geojson file into the upload box
      4. Leave all link attributes as they are and click Import

      Step 3 - Drawing patterns

      BL1_Route_Map_Stations

      Summary of steps:

      1. Open the Services panel
      2. Click "add new route"
      3. Select schedule driven, and select bus as the mode
      4. In the panel that opens for the newly created service, move from the Trips tab to the Patterns tab
      5. Click "add new pattern"
      6. Using the route map provided, draw the outbound direction (Waterloo - Lewisham) by clicking to join the stations in the order shown on the map
      7. When the outbound direction is complete, click Stop Editing
      8. Now repeat steps 5-7 for the inbound direction: join the stops described on the route map for the "Towards Waterloo" direction
      9. Override the automatic street routing at the beginning of the inbound pattern to allow the bus route to travel down the 1-way street; do this by switching the routing from auto to manual and clicking the pencil icon to edit the manual routing

      Step 4 - Creating calendars

      Summary of steps:

      1. In the Services panel, click the Calendar button
      2. Click to add a new calendar
      3. Select all days except Sunday as the operating days, and give your calendar a suitable name (e.g. Mon-Sat Service) and description
      4. Repeat steps 2-3 to create a Sunday only service

      Step 5 - Adding trips

      BL1_Proposed_Timetable

      Summary of steps:

      1. In the trips tab of your BL1 service, click the Add button
      2. For the Mon-Sat daytime service:
        1. Keep the pattern as Pattern A
        2. Set the calendar to your Mon-Sat Service calendar
        3. Set a start time of 5am and end time of 6pm
        4. Set the frequency to a 12min headway
        5. Click create
      3. For the Mon-Sat evening service:
        1. Keep the pattern as Pattern A
        2. Set the calendar to your Mon-Sat Service calendar
        3. Set a start time of 6pm and end time of half past midnight
        4. Set the frequency to a 15min headway
        5. Click create
      4. For the Sun evening service:
        1. Keep the pattern as Pattern A
        2. Set the calendar to your Sun Service calendar
        3. Set a start time of 5am and end time of half past midnight
        4. Set the frequency to a 15min headway
        5. Click create
      5. Duplicate each of the trips created in steps 2, 3 and 4 above - when doing this, switch the pattern used in each of them to Pattern B

      Step 6 - Importing census data

      Summary of steps:

      1. Open the Layers panel
      2. In the Datasets section, click the Import button
      3. Drag and drop the downloaded BL1 Area Census Data dataset into the import box
      4. Keep all the attribute types as they are and click Import

      Step 7 - Generating an access time isochrone

      Summary of steps:

      1. In the Services panel, click on your BL1 service to re-open its Trips tab
      2. Click on the isochrone button; the isochrone tool settings will then appear on the right hand side of your screen
      3. Adjust the isochrone settings to the following (keeping all other settings as they are):
        1. Mode = Walk
        2. Road Network = Streets
        3. Step Type = Distance
        4. Step Size = 200m
        5. Steps = 2
      4. Click Recalculate to see these changes implemented

      Step 8 - Adding queries to isochrones

      Summary of steps:

      1. In the Isochrone tool panel, move from the Settings tab to the Queries tab
      2. Click to add a new query
      3. In the Weight section, click on the "Select an attribute" drop down menu and select "all usual residents"
      4. Click Okay
      5. Repeat steps 2 - 4 for the following additional attributes:
        1. Disabled under the Equality Act
        2. Aged 65 or over
        3. Households
        4. Household is deprived in at least one dimension
      6. Click Recalculate to see these changes implemented