TABLES NOISE ABATEMENT ACT LIMIT VALUES IN Lden[

. VERSION 2007

	Roads already present or under construction
	Dwellings			Noise sensitive land use				Specific open areas
	New dwelling	Rebuilding	Dwellings on farmland	Schools (Day value	General hospital	Specialised hospital	Used for hospital care		Mobil home areas
Preferred vrepr < 70 km/u	53	53	53	53	53	53	53		53
Preferred vrepr > 70 km/u	50	50	50	50	52	50	50		50
Motorway vrepr < 70 km/u	58	68	63	58	58	58	63		58
^Motorway vrepr ≥ 70 km/u	55	65	60	55	55	55	60		55
Inside build up area vrepr < 70 km/u	68	73	--	68	68	58	63		58
Inside build up area vrepr > 70 km/u	65	70	--	65	65	55	60		55
Outside build up area vrepr < 70 km/u	58	63	63	58	58	58	63		58
Outside build up area vrepr > 70 km/u	55	60	60	55	55	55	60		55
Inside values	33	33	33	30 / 33	30/33	30 / 33	--		--

1B. Road traffic : Limit values for NEW ROADS
	Roads to be constructed near existing buildings or buildings under construction
	Noise sensitive land use					Specific open areas
	New dwelling	Schools (Day value	General hospital	Specialised hospital	Used for hospital care		Mobil home areas
Preferred vrepr < 70 km/u	53	53	53	53	53		53
Preferred vrepr > 70 km/u	50	50	50	50	50		50
Motorway vrepr < 70 km/u	60	60	60	55	60		55
^Motorway vrepr ≥ 70 km/u	68	68	68	58	63		58
Inside build up area vrepr < 70 km/u	65	65	65	55	60		55
Inside build up area vrepr > 70 km/u	63	63	63	58	63		58
Outside build up area vrepr < 70 km/u	63	60	60	55	60		55
Inside values	35	30 / 35	30/35	30 / 35	--		--

Reconstructions of roads (only changes in road layout, speed limits or road surface qualify as such):

“stand-still” noise levels are not to increase. Exemptions:

- If the current value is below the preferred value, the latter is permitted

- If a value has been granted, but the actal value is higher, then the granted value must be respected.

Granted values: an increase of 5 dB may be granted, but never higher than the maximum for that

Inside value: 35, in improvement cases 45.

2. RAILTRAFFIC: Limit values for New objects + new railways
	New dwelling	Noise sensitive land use			Specific open areas
		Schools (Day value	General hospital	Specialised hospital	Used for hospital care	Mobil home areas
Preferred	55	55	55	55	55	55
Threshold for applying > 2 dB-change criteria	63	--	--	--	--	--
Maximum new objects	68	68	68	68	63	63
Maximum new railway	68	68	68	68	63	63
Maximum when railway is changed	71	68	68	68	63	63
Inside	33/37^1^)	30 / 33	30/33	30 / 33	nvt	nvt

¹⁾ 37 only in case of a new railway line when no value has been put on an existing dwelling

Change in railway use or track layout:

After the change the lowest of the values a) or b) apply, when above 57 dB:

a. the noise level on 1st July 1987;

b. the noise level at the moment before the change takes effect.

3. Industry: Limit values for New objects + new industrial areas
	Dwellings			Noise sensitive land use			Specific open areas
	New or existing dwellings	rebuilding	Near sea harbours	Schools (Day value)	General hospital	Specialised hospital	Used for hospital care	Mobil home areas
Preferred	50	50	50	50	50	50	50	50
Maximum new objects	55	65	60	60	60	55	55	55
Maximum new industry	60	--	--	70	70	70	65	65
Inside	35	35	35	30 / 35	30/35	30 / 35	nvt	nvt

4. Limit values applying to the grants for the improvement program
	Roads > 70 km	Roads <70 km	Industry	Rail traffic
Threshold for qualification	57	60	55	65
Maximum Allowable	72	75	65	73
Inside	40/45	40/45	40/45	40/45

.

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[i] The maximum of LAeq, day, LAeq, evening + 5 or Lnight+10 dB(A). Depending on source this can be a year average of a representative value. Rough conversion: L_NAA= Lden+2 dB