How to exclude short time road blocks during navigation

[Axel Härtl]

@Nick-Carthew

Hi Nick, to be honest - that seems much too complicated for me - especially on a small mobil phone.

What's the reason not to implement a solution like other navigation systems? I'm shure most users will be very pleased with such a functionality.

[Con Hennekens]

@Axel-Härtl, The reason is that usually it is unknown how long the blockage is. You can assume 1 km or 5, but there is no realism in it. ALSO, usually a detour is on the signs on the road. Just follow that advised detour. ALSO, If you block say 1 km of road but the detour puts you on the road 3km further, your solution would send you back for 2km. So... I am happy with the way it is now...

[Axel Härtl]

@Con-Hennekens

Hm, I understand what you are saying. Your are right - the lengh of the blockage is not known a priori. So the software has to deal with that uncertainty (see my point #2 below).

1: If there are detour signs, following those is definitely the best choice. Of course some shaping, or - more important - via points have to be deleted.
-a: when are I back on the original route?
-b: which via points did I miss and have to delete them? (Assuming that shaping points are skipped automatically.)

You see - pretty much to do. Not very user friendly.

2: The algorithms of Calimoto and friends don't guide you back towards the detour you just took. Once you're back on the original route, the software continues to guide you in the direction of your original destination. That means, that the estimation of the length of the blockage is not crucial. If you choose a too long blockage, the detour will be longer. That's it.

So I keep my question open: why not a similar philosophy in MRA as in comparable navigation systems (of course, MRA is not comparable to any other system. )

Best, Axel

[Nick Carthew]

@Axel-Härtl As I have said in a previous comment, in the highly unlikely event of a road closure not having local diversion signs, using your inbuilt navigation device (common sense) you look at your screen and see the white line of the original route. It really is not difficult to navigate back to it.

[Axel Härtl]

@Nick-Carthew

Thanks, Nick. You have a very good point.

One could see, wether there is a via point (or an unskipped shaping point) on the white line. Then it is easy to delete them. Perfect.

Thanks - your solution will help me in future definitely.

Best, Axel

[Nick Carthew]

@Axel-Härtl You could always clear the blocked road like Corjan and I did in 2023

[Axel Härtl]

@Nick-Carthew

Again a very good point.

I will remember your solution the next time I'm facing a blocking.

[BMWBiker58]

I would also like to see better technical support in the event of sudden road closures. Unfortunately, I very often find that motorway exits are closed. This means you’re forced to drive past them. As a result, you’re directed in the opposite direction at the next junction, only to be led back to the closed exit after another U-turn. Especially when the closure is announced at very short notice, there are (as yet) no diversion signs. The advice to ‘navigate by sight’ back to the route is not helpful to me, particularly when you are in a completely unfamiliar area and have a poor sense of direction. Technical support that eventually guides you back onto the route would be the most useful improvement to the MRA NN app for me.

[Herman Veldhuizen]

last minute closures (caused by accidents typically) never have diversion signs. tomtomgo expert has indeed a useful feature to deal with such cases and it would be a useful addition to MRA. But if you ask me wether implementing it should get priority over some other issues my answer would be no.

[Nick Carthew]

@BMWBiker58 said in How to exclude short time road blocks during navigation:

I would also like to see better technical support in the event of sudden road closures.

The app is very good but it cannot foresee sudden road closures. If you have to go past your intended motorway exit the app can recalculate your route, this has to be used alongside some common sense, therefore don’t take the next exit and go back in the opposite direction. You may need to skip some route points but if you use the “Show original route” option, when you have to leave your planned route and there are no local diversion signs, the white line of the original routes gives you a target to aim for.

I would urge everyone to test and practice this method before a real situation comes along, this way you know what to expect and how to deal with it.