Sign-specific properties

Sign feedback can be sent as POINT or LINE data.

Element		Required	Data Type	Description
`error`		Yes	String	920 for Sign Map Feedback
`domain`		Yes	Object	Sign Request structure with the following attributes encoded
	`↳ signValue`	Yes	String	Value posted on sign; specific truck values are listed in the following Signs signValue Table below
	`↳ signUnit`	Yes	String	Unit of posted sign
	`↳ rev`	No	Boolean	Specific direction; default is false
	`↳ subType`	Yes	Integer	Specific information about the nature of the request as described in the following Signs subType Table below

Sign subType	Add Missing	Delete Existing	Wrong Information	Units
Speed Limit Sign	1	2	3	kmh or mh
General Sign	4	5	6
Truck Speed Limit Sign	7	8	9	kmh or mh
Truck: Weight per Axle sign	15	16	17	T Tonne or US Ton
Truck: HazMat	20	21	22	(none)
Truck: Weight restriction sign	10	11	12	T Tonne or US Ton
Truck: Height restriction sign	30	31	32	m Meters
Truck: Width restriction sign	40	41	42	m Meters
Truck: Length restriction sign	50	51	52	m Meters
Truck: Trailer count sign	60	61	62	(none)
Truck: Tunnel category	70	71	72	(none)
Multiple or other truck restriction	91	92	93	(none)
Other speed situation	101	102	103	(none)

signValue	Code	Description
HazMat Values	1	Explosives
	2	Gas
	3	Flammable
	4	Flammable solid/Combustable
	5	Organic
	6	Poison
	7	Radioactive
	8	Corrosive
	9	Other
	20	Any Hazardous Material
	21	Poisonous Inhalation Hazard (PIH)
	22	Goods Harmful for Water
	23	Explosive and Flammable
Tunnel Category	24	Tunnel Category B
	28	Tunnel Category C
	32	Tunnel Category D
	34	Tunnel Category E