Hi all, during the last days I've analysed the reasons for the error messages reported by some of you. I came to the conclusion that I have to - change the handling of addr:interpolation ways completely - add code to detect the "random number" case earlier and - if detected - use different methods to split the number intervals Both are rather complex changes, so I'll need a few days to code this. One open question for you: How should we handle "missing" information? If mkgmap finds the numbers 1,3,9,11,17 in that order on the left side of a road called ABC, it can create different housenumber informations. One could be like "odd numbers from 1 to 17 on the left", another could be a more complex sequence 1) "odd numbers from 1 to 3 on the left", 2)"odd numbers from 9 to 11 on the left", 3) "odd number 17 on the left" A search for ABC 5 would either show a point between 3 and 9 or two entries with the numbers 3 and 9. The latter tells you that OSM probably doesn't contain the exact information and let's you decide where to search for ABC 5. The trunk version tends to the simple info, while r3486 is more likely to produce the complex one. I think trunk is better here, the complex case should only occur if the "random number" case was detected. Do you agree? Gerd