[gps-talkusers] Roundabouts for Charles

Hi Charles,
I sent this message to the list a few weeks back, perhaps while you were on vacation. There were a few replies in support of my suggestion, and without meaning to pester you, I'd really appreciate your take on this. I've added one or two clarifications to my original message, but when you get a moment, please do let us know what you think. 

Original message:
As I was one of those who asked for Sendero to handle roundabouts in a more usable way, I'd first like to thank Charles and the team for a terrific job in version 5. I have now done some long car journeys running Sendero alongside Wayfinder in order to compare how they dealt with roundabouts, with the emphasis on how useful the instructions are for the driver, but also taking into account pedestrian use. Sendero is now definitely usable for this kind of journey and I know how much work went into this, so a huge thank you. 

I do have one suggestion which I think would make for even better results.
At present, for any roundabout at all, besides the message about which exit to take, (which is working perfectly) you will hear, either when browsing or with "Approaching ..." either left turn, ten o'clock turn, or eleven-o'clock turn. This refers to the actual turn onto the roundabout, and is entirely unhelpful. It's unhelpful to the driver who does not think of the turn onto the roundabout as a left turn, and unhelpful to a pedestrian who does not walk on the roundabout, but rather needs to work out which intervening roads to cross. Similarly, when on the roundabout, the exit road will be classed as a left-turn, which is equally unhelpful.
What I am suggesting is what I have always suggested, but it's hard to put over in an Email, so let me try just once more.
The information about the turning should refer only to the road you are to take, in relation to the road you are on before you enter the roundabout. The roundabout itself should not be treated as a road. For example, let's say you have a simple four-way roundabout. You are on road A, and the roundabout joins roads A, B, C and D, going in order clockwise around the roundabout. If I am to take road B, then that is the first exit, and a left-turn. If I am to take road C, then that is the second exit, and an ahead-turn. If I am to take road D, then that is the third exit, and a right-turn.
This approach could equally well cope with more than four roads, since, for example, the fourth exit might be a two-o'clock turn, the fifth exit a four-o'clock turn and so-on, so in this case, it would say "approaching four-o'clock turn ..." and "turn four-o'clock taking fifth exit." . The crucial point is to give information about the road you are to take relative to the road you're on, and never to count the roundabout itself as a road.
Charles: if you don't agree with this as a possible improvement, please could you say why not because it seems such a clear-cut simplification for both vehicle and pedestrian use, but maybe I still haven't managed to explain it, or am missing something important.
In any case, I'm still absolutely delighted with version 5 so this is a refinement request, albeit an important one for those countries where roundabouts really are a big deal. 

All the best,

Peter

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Peter Bosher,
Email: peter@xxxxxxxxxxxxxx
http://www.soundlinks.com/
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