[mkgmap-dev] Turn commands

Hi, I have noticed that the number of turn commands my nuvi tells me are more frequent now. It looks like the sensitivity changed. Some weeks ago it didn't told me to turn in some cases I would expect to get a command. Now it likes to talk much more. Sometimes in cases where it is not required because I just follow the same road. My question is: Is there some code in mkgmap which tunes that behavior ? Thanks Berni.