Something has changed. Previously I found that entering a location would take the map view directly to the place given, even to an abbreviated postcode but only for one shot. Next time the page was refreshed to get latest traffic situation it lost the postcode entry and jumped away to where it detected it was.
Today, I find the entering a postcode location stays set until another place is typed in so refreshing the page jumps back to where you are. Much better if you are looking for trends of traffic problems before setting out. Tomorrow we have to face the nightmare of the A64 ......... on a Friday ........ in the holiday season ........ again.