i'd like to call up the mta riccardo. mr. lay i want to thank you and your colleagues with the mta in terms of working with the statistics and the presentation you're about to show >> good afternoon. supervisors and member of the publics i'm riccardo i'm the city traffic engineer we i have a few colleagues that are the heads of our parking enforcement groups. thanks for the introduction you pointed out a lot of the issues with the double parking it's common in san francisco and a lot of the large decency cities across the world. when i was reaching this there was from new york city and philadelphia. it's a common problem with the cities that rely on the streets for loading activities there's a greater tendency in those situations to have double parking. of course, in other areas of san francisco or for some types of building there maybe off-road site loading but for our commercial streets that's not the case. some can impede parking bikes. the exact impact on transit and the users of the city there's no one summer that can be