Beyond the bridge, the thing that has me stunned here is the precision and cleanliness of the job site. Being from the north east of USA, I am used to seeing road construction sites in permanent disarray - materials everywhere, rough interfaces between work site and untouched road, filthy machines, trucks, uniforms, and tool, etc. Is this just pristine because it's for a promo video or is this the norm in some places?
As a someone born and raised in the Northeast now living in Switzerland I can confirm that the cleanliness, orderliness and array of machinery is indeed typical in Switzerland :D But don’t let this bridge promo fool you, you’re just as likely to deal with roads closed to construction as anywhere else… the cost of well functioning infrastructure is that they always seem to be working on it!
Probably a lot different when you are working under a bridge with cars whizzing about your head. There is not a lot of margin for error or an abundance of space to leave extra equipment.