Adapt average speed for group rides

[Klaus r]

Just have come back from a trip with friends to France and Switzerland.
Planning nice curvy roads with MRA for 11 routes was fun.
But:
the calculated times for viapoints most of the time were too optimistic for our group (cruisers).
Of course, as this will depend on type of bikes and experience of the drivers in a group I propose a simple solution:

Add to Toolkit a new function.
"Adapt average speed (for group rides)"
Then e.g. on a slider one can choose a "correction factor" e.g. from -20% ... +10% (for fast bikes)
You could use this factor then on all types of roads for calculating of the estimated times.

So it is then up to the excperience of the tourguide to set the factor appropriately.

[Corjan Meijerink]

@Klaus-r fun idea!

[Klaus r]

@Corjan-Meijerink Maybe "Adapt average speed" is misleading.
One could implement it vice versa.
"Adapt time calculation (for groups)"
= "Zeitberechnung (für Gruppen) anpassen"
+10% ... -20%
where +10% means group drives faster than normal, results in shorter time intervalls,
and -20% means group drives slower, longer time intervalls.

[Klaus r]

@Klaus-r
or
-10% = reduce ETA by 10%
+20% = extend / prolong ETA by 20%

[Stefan Hummelink]

@Klaus-r I definitely support this request, but I would suggest to keep the adjustment to affect the speed. Time is relative for type of roads that are picked out. For me personally when we ride a 60km/u road, we on average take it at approx 70 to 80km/u. So the control should simply increase the speed limit per road. The algorithm itself will then account for the shorter ETA.

[Nick Carthew]

@StefanHummelink Is this you on the speed camera

[Klaus r]

@StefanHummelink
Well, I think this depends on how the algorithm to find the fastest road between 2 waypoints and the time calculation is implemented in MRA.

In a former gps I used, there was an ini file with a speed profile for each vehicle type with speeds for e.g.
interstate
highway
major road
minor road
local road

I manipulated these values to get results which fit better to my driving style.

But I wanted to propose a simple solution:
to apply a correction factor to all of these type of roads.
So, if you drive faster simply add x% to these speed values, or multiply by 1,x.
If you drive slower than substract x%, or multiply by (1-0,x)

Of course, there may be better solutions but I thought KISS
Keep it Small and Simple

[Stefan Hummelink]

@Nick-Carthew No license plate captures. I see no issue at all muhahahaha!

[Stefan Hummelink]

@Klaus-r that is exactly what I would like as well. i.e. the option to correct all speed limits by 20%.

That means 36km/u in 30km/u zone, 60km/u in 50km/u, 72Km/u in 60 and 96km/u in 80km/u.

The numbers above suit me and my group very well.
What I wanted to say is that I prefer the correction on speed which results in a correction on time, rather than a quick and dirty correction in Time for the grand total.

[Klaus r]

@StefanHummelink Well, in my group of cruisers with choppers it is quite the opposite.
On a road e.g. with limit 100km/h they drive 85-90km/h which means we will arrive later than estimated
(and which makes me crazy sometimes...)
which means the speed of that road should be reduced for calculation.

I am curious to see which solution MRA will offer.

[Stefan Hummelink]

@Klaus-r So -10% for you, +10% for me. A simple list of percentages would suffice!

[Klaus r]

@StefanHummelink

[Klaus r]

So, one can name the new function
Adjust speed = Geschwindigkeit anpassen

Might also be useful for MRA users with other type of vehicles like cabriolets, oldtimers etc.