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Surveys: Overview

What is a survey?

A survey is a collection of slices — the primary unit of gauging data in Cordel Connect. Think of a survey as a folder: it groups all the slices captured during a single gauging run along a section of track.

Each survey contains slices, which are individual 2D cross-sections of the rail corridor taken at intervals of 1–5 metres. Slices are the SC* files that hold the actual measurement data.

Once a survey is published, it and its slices can be exported for use outside Cordel Connect.

How to view a Survey in Survey Viewer

  1. To open an exiting Survey, users need to first open the Survey Index page. Open the main menu in Cordel connect and navigate to Gauging> Surveys.

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Select Surveys from the Gauging module


  1. Search for the survey/s required using the search filters on the Survey index page.

Detailed information on how to search for Surveys.

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Use the fields at the top of the Survey Index page to search for the relevant Surveys


  1. Click the corresponding blue hyperlink. This opens the Survey in Survey Viewer.

Users can right click the blue hyperlink and choose to open a survey in a new window or tab. This maintains the search results on the Survey Index page for later use.

🔗 Survey Viewer


How to create a Survey (manually)

Note: Depending on the configuration of your Clearance Connect module, surveys may be created automatically.

  1. On the Surveys Index Page Click the Upload icon to create a new Survey. The ‘Upload Data’ form will open.

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  1. Complete the Upload Data form by dragging and dropping Survey files or navigating to saved Survey files, and fill in the required fields.

  1. Click ‘Create Survey’

 🔗 How to create a Survey

More detailed information of how to create Surveys.

Key facts

Surveys contain slices

A survey groups all slices from a capture run. The slices within a survey represent individual cross-sections of the track at specific locations along the corridor.

Survey statuses

Surveys progress through a series of statuses from creation through to publication. The statuses available in your environment depend on your organisation's configuration.

Only one published survey per track section at a time

Publishing a new survey for a track section supersedes the previous published survey for that section. Historical surveys remain accessible but are no longer the active reference.