I understand, but my question was not really directed towards the type of freight. Trains make noise no matter what they carry, and they make noise in major metropolitan centres no matter what they carry, but the reality is that Europe and countries around the world have standards set for decibels at night and during the day to ensure people don't suffer from sleep apnea and other major chronic problems caused by noise at night. As far as that goes, even though there are differences in freight and length of travel, the reality is that people live by rail in Europe and they have set standards for noise, fumes, and whistles blowing at two in the morning in shunting yards to make sure people have a reasonable quality of life. How would it be so different in terms of the freight, people, or whatever other criteria you consider necessary?