we do recommend maintaining cut and cover on 2nd street between clea clementina and townsend but it loose traffic to flow along howard street. and last we recommend performing value engineering at the conclusion of that 30% design just to validate our assumptions and make sure we are on the right track. any questions, please? >> director nuru: no questions? director reiskin? >> i have a couple of questions on that townsend street portion. the first is the pier review panel from the last item recommended second platform so that all three trains could access platforms. how would inn corporation of that recommendation impact your recommendations, if at all? >> we would maintain that you could still need cut ask cover obviously at the 4th and townsend stays. it doesn't have a pass in terms of what we recommend for the mining option. >> and then the second question on townsend street is an area that you didn't cover here but it's the area west of the station area. as you know it's our desire ultimately to have the trains not surface but to stay underground so that we can avoid what director g