Thanks for the reply

I've tested one of your routing.xml (mycar12), sometimes it works sometimes 
not.
The problem is your mycar12.xml is a car profile, and I didn't use a car, I 
use a motorcycle.
How can I change my own motorcycle profile Heuristic Coefficient? Or maybe 
you can help change the HC from this file?

Pada Minggu, 04 Juli 2021 pukul 15.45.36 UTC+7 [email protected] menulis:

> That is due to the heuristic coefficient of 1.0 that OsmAnd uses. That is 
> way over the top. Search for heuristic coefficients in this group and you 
> will find many posts about it (a lot from me criticizing this ;) and 
> offering modified route xmls).
>
> I use 2 routing xmls.
> One with a hc=1.2 for big city travel for s little more accuracy.
> One with a hc=1.5 for long(er) distance travels.
>
> I have a spreadsheet with lots of comparisons (every route calculation 3x 
> without cache and then averaged for the final time)
> See for example two (longer) distance calculations. The calculation 
> differences remain the same on shorter distances, but if it calculatates a 
> route in 3 seconds inside a city or 10 seconds is for me not that important.
> heuristic coefficient distance
> (calculated) calc. travel time
> (hours minutes) calculation time
> minutes/seconds) Remarks
> Zwolle, Nl - Puttgarden ferry, Ge lot of motorway/highway
> hc=1.0 487km 4h57m 1m58s 
> hc=1.2 487km 4h57m 19s 
> hc=1.5 487km 4h57m 7s 
> Zwolle - Machiel Vrijenhoeklaan 354, The Hague, Nl first and last part 
> quite some "in city" routing
> hc=1.0 169km 2h4m 1m21s 
> hc=1.2 169km 2h4m 11s 
> hc=1.5 169km 2h4m 5s 
> Note that for in-city routing I always use OsmAnd as it calculates the 
> best estimated arrival times and routes as it uses its time penalties for 
> crossroads, traffic lights, etc.
>
> My spreadsheet contains many more lines of comparable calculations in 
> several countries, road-types, straight-on routes, routes with lots of 
> parallel route options, routes with much in-city traffic, etc. They 
> continuously show to me (prove to me) that an hc=1.5 is good for longer 
> distance and 1.2 is optimal for big city traffic.
>
> Harry
>
> Op zo 4 jul. 2021 om 04:22 schreef RizkyAM <[email protected]>:
>
>> My OSMAnd in-built routing is very slow compared to the Brouter plugin, 
>> even if it's just several kilometres (in city area), but it's normal when I 
>> try it outside the city (countryside).
>> Video showing the difference between in-built routing and brouter 
>> <https://youtu.be/uvZU7uIpnv0>
>>
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