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Travel time calculation in V4

Now that V4 is quite ironed out (thanks, Guido, I almost lose the faith on you after the release of V4.0 šŸ™ ), I found that the travel time in V4 (which, I guess, is provided by the map provider and not calculated by Scenic, although I may be wrong) has little sense on twisty roads and it may be off of may be one to two hours in 400 Km ride. So I prepared a spreadsheet that calculated the speed between WPT, using Scenic data : distance and time between WPTs to check was going on. (Being retired gives me a lot of time)

I discovered that on main roads, Ā calculated speed was correct, but in curvy roads time was calculated with speeds of Ā 30 Km/h or even less. In the current Scenic version it is better, but it is still too low (in 40-45 for slightly curvy roads that are usually ridden at 60-70 at a standard pace, and may be as much as 90 without breaking your neck. BTW I'm 78 y.o. and, as per today, still alive so...). Ā I understand that the map makers, or whoever calculates the time, should consider low speeds. but the speeds on these roads seem low even for cars

So, one thing leading to another, I boosted my Excel file, making possible to modify the calculated speed. The spreadsheet then recalculates then Ā travel time, and it shows passage hour for each WPT.

This is an example:

  • Green background, Scenic Data
  • Yellow background, Input data
  • Salmon background, calculated data based in modified speed input
  • Blue background, giving an offset, Ā WPT passage time
  • Grey background rows, stopped time

If someone is interested, I'll send the file. Right now labels are in Catalan, I will translate them, of course

 

And, thinking on that, may be Scenic may have an option for travel time calculation : standard rider, scenery rider, focused rider, which will automatically modify the speed (when it is below a certain threshold, may be 50 Km/) by a certain percentage +/- 10%

In any case, I ignore if this problem is shared by other Scenic users, I suppose that depends on the routes they ride on

DRTBYK has reacted to this post.
DRTBYK

This is very helpful Carlos. Thank you very much!

 

Yes, the duration overestimation is an ongoing struggle I’m afraid. Indeed it’s mostly when the route contains smaller roads (where speed limit is not known) where it’s overestimated. Ā And then also it depends on the country and the region. I’m still working with the map provider to get this better. More info here if you did not already see it: https://scenic.app/forum/topic/route-duration-overestimation-send-in-your-examples/

I’ll make sure to use your excel too. Would you mind sending it to me through email?

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