We’re not entirely sure if we can control this, but we’re looking into it. I noticed this problem myself in Oxford at the recent UK Meetup.
There have been discussions before about the pronunciation of 4-digit road numbers. Opinions varied as to whether to pair digits or not and I don’t remember any definitive consensus being reached. However, I’m pretty sure nobody would like digit-pair-digit. :roll:
Indeed, digit-pair-digit is only slightly less appealing than having such a number read out in full (e.g. “ay four thousand one hundred and forty six”).
Personally, I’d suggest that all single and double digit numbers are read out in full (“ay one”, “ay forty two” etc), as are all 3+ digit numbers which are multiples of 100, 1000 respectively (“ay four hundred”, “bee one thousand” etc).
Other 3+ digit numbers are where it gets more contentious, and whilst my personal preference would be to read them out digit by digit, I can see why some people might prefer at least some numbers to be read out as pairs of numbers - i.e. “ay forty ten” vs “ay four oh one oh”.
But “ay four fourteen six” is just wrong, so so wrong…