dr. erhart and his team did, they can download from the website today. again, that data could be augmented or complimented if there's additional data to answer those questions. sftc a&m ta have been striving to work with the tnc and there's been much more collaboration with respect to pilots. this research effort started a little bit long before that new tone was set. so we haven't incorporated any data directly from tnc's but we certainly could if that were available. >> chair a. peskin: i want to echo what joe was saying, the tone has changed but we still have a ways to go. finally, my last question before i turn it over to commissioner ronen and other commissioners on the screen, is there a way to measure the induced demand? >> that's a great question. with the data we have today, it's not possible for us to put a fine point on induced demand. however, there is research out there from other folks that has looked at the induced demand effect and it seems to be about 6-8% plus/minus. the sftca in partnership with the metropolitan transportation commissi