The timing of the streetlight on Allston crossing San Pablo was altered some months ago. The crossing time on Allston has been shortened significantly, for every other cycle, to about 10 seconds, thus only allowing 3-4 cars to cross. This timing substantially backs up cars in both directions on Allston. During commute hours in the AM and PM, there is often a backup of over a block. This never happened before the timing was altered. Please return the timing of these lights to the longer cycle, as they functioned previously. Thank you.