Currently TfL are doing a consultation 'brainstorm' looking at Usability, things to change and to add. There isn't yet an agreement with DfT to begin wider consultation though with TfLs pressure one would like to think they well begin the process to revise it. I suppose that the legal points in it are based on case law covered in the reference source section of the HC which are noted in a number of sources.
@David
Currently TfL are doing a consultation 'brainstorm' looking at Usability, things to change and to add. There isn't yet an agreement with DfT to begin wider consultation though with TfLs pressure one would like to think they well begin the process to revise it. I suppose that the legal points in it are based on case law covered in the reference source section of the HC which are noted in a number of sources.