vehicle label names,

[dobkeratops]

As I suspected wikipedia confirms the definition of 'car' doesn't include many-passenger or goods transport vehicles:

https://en.wikipedia.org/wiki/Car - 1-8 seats; includes SUV,minivan/people-carrier https://en.wikipedia.org/wiki/Truck - larger, for transporting goods https://en.wikipedia.org/wiki/Bus - larger, for many passengers https://en.wikipedia.org/wiki/Van - intermediate between car & truck.. can be smaller than an SUV, the distinction is that it's not for passengers

I would suggest at least adding labels for truck, bus,van,motorcycle to complete traffic labelling. I can't figure out a good candidate for a collective name.. "motor vehicle" is the closest wikipedia has, but too broad.

"motor vehicle"->{
    "onroad motor vehicle,over 2 wheels" ->{
        "car"->{
            "hatchback car","saloon car"/or"sedan"(USA),"convertible","sports car","SUV",...
            https://en.wikipedia.org/wiki/Sedan_(automobile)
            https://en.wikipedia.org/wiki/Hatchback
        }
        "van"
        "truck"->{
            "Semi-trailer truck"
            "pickup truck" (classed as truck, even though people use as cars..)
            "dump truck" https://en.wikipedia.org/wiki/Dump_truck - present in construction sites
        }
        "bus"->{
            "coach" https://en.wikipedia.org/wiki/Coach_(bus) type of bus for intercity,private hire..
            "double decker bus" https://en.wikipedia.org/wiki/Double-decker_bus
            "minibus"
        }
    },
    "motorcycle",
    "offroad motor vehicle"
}

"road vehicle"->{car,van,truck,bus,motorcycle,bicycle..}

"semi-trailer" trucks aka "articulated trucks","articulated lorry" have a part:"semi-trailer" https://en.wikipedia.org/wiki/Semi-trailer

"vehicle" of course covers everything https://en.wikipedia.org/wiki/Vehicle including boats, and aircraft, railed vehicles, and bicycles.

having a component label wheel/vehicle or wheel/motor_vehicle might be nice, technically wheel/vehicle could include wheel/bicycle.. i think you'd want those seperated. Similarly wheel/motor_vehicle would really include "wheel/motorbike". what I'm really after is a wheel/(car|van|truck|bus) I guess..

finally, "heavy equipment" https://en.wikipedia.org/wiki/Heavy_equipment seems to be a collective term that can include diggers/excavators, tippers .. stuff with wheels and engines found on construction sites. i'd be uneasy calling these vehicles since their purpose is not transport, but they do seem to be a "a vehicle with extra task-specific equipemnt inbuilt"

cabin would be a nice component to have, e.g. cabin/truck (that would cover the front enclosed part of an articulated truck, but not it's wheels), cabin/heavy_equipment (e.g. for excavators) etc.. (cabin/boat aswell..)

[dobkeratops]

Interesting objects present in construction sites:-

"excavator": https://en.wikipedia.org/wiki/Excavator "mini excavator" aka "compact excavator" - has a distinct look, and I see many IRL https://en.wikipedia.org/wiki/Compact_excavator "backhoe loader" https://en.wikipedia.org/wiki/Backhoe_loader - very common around here "dump truck" https://en.wikipedia.org/wiki/Dump_truck "bulldozer" https://en.wikipedia.org/wiki/Bulldozer "crane" "tower crane" - very distinct look, very common on city skylines https://en.wikipedia.org/wiki/tower_crane

interesting objects in docks/ports - some visible around here,

"container crane" or "gantry crane" https://en.wikipedia.org/wiki/Container_crane "shipping container" - https://en.wikipedia.org/wiki/Shipping_container can be seen on trailers,ships , or sat in ports waiting, or elsewhere in industrial areas