Is it legal to park a semi truck with trailer on a through street in a neighborhood?
The to this varies from place to place. The most common preventor would be a weight restriction on residential streets, which is usually city-wide or county-wide. There may also be city ordinances preventing overnight parking of large or heavy vehicles. However, if neither of these conditions exist, and the street is wide enough so as not to impede traffic flow, then this is just as legal as parking your car. Remember not to park in front of mailboxes, driveways, fire plugs, or sidewalks!