LONDON.- This autumn Tate Britain embarks on a process which takes the gallery into the first phase of a major building project, through a period of transition and into a changed approach to showing the collections in newly refurbished galleries. The two-year period between spring 2011 and spring 2013 will be characterised by new ways of thinking about the Collection in the BP British Art Displays at Tate Britain. There will be two primary approaches, firstly a route for visitors to walk through an open chronological presentation, and secondly in-focus displays which will give more in-depth perspectives on particular artworks, artists or themes. In February 2011, Tate Britain will begin a major project to conserve and upgrade a number of its beautiful historic galleries to enable more of the Collection to be shown in conditions suitable for a wider range of art media. The project will also remodel and renovate core visitor are