[New Profile] Long Distance Trekking

[fm-sys]

Hello,

I somehow feel like the brouter trekking profile is "too bike friendly". When using the ignore_cycleroutes flag it gets a bit better, but I'm still not confident with the results.

I tried the fastbike-lowtraffic - quite nice - however it doesn't seem to use the bicycle infrastructure at all.

Therefore I wrote a trekking-fast.brf profile. I would be interested to get some feedback for fine-tuning. Maybe we could even add the profile to the brouter default profiles?

https://github.com/fm-sys/brouter-profiles

Edit: Changed the name to Trekking-longdistance.brf

Core changes:

• higher turn cost (avoid zigzag shortcuts through residential areas)
• penalize unpaved tracks while being more tolerant with larger roads
• make cost factor depending on speed limit
  • primary roads with speed limit <50 get penalized less than primary roads outside built-up areas

[poutnikl]

There may be profile name clashing with my trekking-fast profile, see https://github.com/poutnikl/Brouter-profiles

[quaelnix]

I would be interested to get some feedback for fine-tuning.

At least for my taste way too much highway=secondary and highway=tertiary, but to each their own.

[poutnikl]

Usage tip: As I have done for long distance variants of my trekking profiles (probably in dev branch of the template), I suggest fine tuning of the bikepower value to match BRouter ETA with real travel time for a known route (possibly involving various physiological, cultural or technical breaks). I use 85 W for long distance loaded bike, with total weight including luggage, but each has his own ideal value.

When done, it provides reliable ETAs, unless there are some extremes, fooling BRouter ETA internal algorithm.

[fm-sys]

I would be interested to get some feedback for fine-tuning.

At least for my taste way too much highway=secondary and highway=tertiary, but to each their own.

Yes, everyone has different preferences. The profile is more optimized for driving many kilometers in a short time, not for finding the nicest route for a multi day trip. Actually more like a fastbike profile, but still preferring bike infrastructure. Accepting unpaved paths, but not preferring them as much as a gravel profile.

I will try the ETA tip, thanks for the suggestion!

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And meanwhile I feel we shouldn't add any more user created profiles to brouter. 5 different cyclists, 10 profiles ;-)

Let's just hope we get persisted profiles for brouter web one day... (https://github.com/nrenner/brouter-web/issues/127)