the cost is coming down. >> i wanted to ask, administrator anne ferro, now your leaving soon. thank you for all of your work at the agency. when he last appeared before this committee on the hours of service role you have testified that placed upon the fmcsa study that is essentially there was evidence that more trucks, larger trucks would be on the road during daytime hours. because of the new hours of service world. do you dispute that? >> i spoke to the logic that we use to analyze what that might be looking at the 15% impact and identifying that by virtue of logical analysis about 250,000. >> so by logic because biologic we're going to have more large trucks on the road during the daytime. >> well, in fact the follow point on that is about 250,000, that is barely a drop in the bucket when you look at the 10 million -- >> have we fully -- as i understand it we have not fully analyzed. that is one of the purposes of the current study, to have a full analysis of what will be the impact during daytime hours in terms of truck traffic. as you and i have talked about in the past,

we're very grateful to ann ferro for being here today, she's the administrator of the federal motor carrier safety administration, in fact, the longest serving administrator in its history. she was appointed by president obama in 2009, and i join senator blunt in expressing my regret that this is probably your last appearance before this committee and wish you well in your future work. joan claybrook is a witness who really needs no introduction. she is co-chair of advocates for highway and auto safety and a frequent participant in our work and hearings. she is the former president of public citizen. prior to becoming president of public citizen in 1982, she was an administrator of the national highway traffic safety administration in the department of transportation. we're honored also to have david palmer, major david palmer of the texas department of public safety. major palmer is the former president and board member of the commercial vehicle safety alliance which is an international organization that enforces commercial motor vehicle safety laws, and he's currently a major with the tex