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Data Analysis Fundamentals: Track Reports

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Track Reports

02.40

00:00 - As we've already discussed throughout this course, a large part of our job is to find time efficient methods of analysing large amounts of data and finding trends or issues within that data.
00:11 Another technique we have in our data analysis toolbox is to use a track report to help us.
00:18 A track report is simply a track map which is overlaid with a channel or channels that we want to analyse.
00:25 We can display the data in a colour coded format which makes it very easy to spot issues at a glance and we can also add relevant information for minimum or maximum values to the track report.
00:36 There's no right or wrong way to use these track reports and it will come down to personal preference as well as how you prefer to display or interpret your data.
00:45 You can display basically any channel on the track report but some are more useful than others.
00:52 A common option would be to display RPM and gear on the track report.
00:56 Along with minimum and maximum RPM so that you can analyse whether the gearing of the car is well suited to the track and whether the correct gear is being used for a particular section of track.
01:08 Lap overlays are also possible with the track report which offers another way of visualising differences in braking points, cornering speeds and throttle application.
01:17 In some instances, this can make differences clearer than looking at a time/distance plot.
01:23 Particularly because you can immediately reference any differences to a specific part on track.
01:29 Personally I find track reports are a useful way of analysing something like engine health.
01:34 For example we may want to display the oil pressure channel and colour code this so that we can instantly note any areas where the oil pressure is lower than desired.
01:44 The track report can also mark the minimum and maximum values for different sectors of the track if you want to get a little more specific around what's happening.
01:53 Another way that I'll use a track report is to quickly identify if my air/fuel ratio is within a range I'm comfortable with.
02:01 To do this I simply define the range of air/fuel ratio that I want to see under wide open throttle operation as green and then I can quickly cycle through the laps to see if the air/fuel ratio is safe.
02:13 The key areas we'd be looking for would be any long straights where the driver will be at full throttle for an extended period of time.
02:20 While we can't necessarily ignore the air/fuel ratio at part throttle through a corner, it's the areas of sustained wide open throttle that are likely to result in engine damage if the air/fuel ratio becomes dangerously lean.