Based on this response I have to assume you spend 100% of your time in your house and can't understand why diesel trucks would ever impact someone in another setting.
So I guess all the cars and trucks should be taken off the road to improve my safety right? How dare they pollute with their engines and break dust, that is harmful to my health! I should not have to wear a mask to bike safety in a city because vehicles emit dangerous emissions and pollution.
FYI the local garage truck is a diesel and I can hear it because my windows are old and crappy
And you should also feel entitled to clean, breathable air while walking and cycling. Any local government that cares about the safety of residents would agree, I think.