In this page, we speak Prime Minister's Office Order that we set about the details of request limit of vehicle noise based on noise-control regulations.
This request limit is applied from April 1, 2000 (Heisei 12) and is used for evaluation of result of a measurement from 2000. In addition, please see this about request limit before this.
March 2, 2000 Prime Minister's Office Order No. 15
Revised December 15, 2000 Prime Minister's Office Order No. 150
Based on regulations of noise-control regulations (1968 law No. 98) Article 17 Paragraph 1, it revises all of order (1971/Prime Minister's office/Ministry of Health and Welfare/ordinance No. 3) to determine limit of vehicle noise in appointed place area based on regulations of noise-control regulations Article 17 Paragraph 1 as follows.
Departmental order to determine limit of vehicle noise in appointed place area based on regulations of noise-control regulations Article 17 Paragraph 1
Article 1 (definition)
In this departmental order, significance of term to advocate to each next issue depends on place to set of each issue concerned each.
(1) We say part of belt-shaped road having width necessary for car (we remove two things.) of traffic lane 1 column to also run smoothly safely.
(2) It is the public Expressway to prescribe in national highway prescribed in road road law (1952 law No. 180) Article 3 to take main line traffic on, general national highway, public road and municipalities village road (we limit to section having 4 traffic lanes or more traffic lanes when it is in municipalities village road.) and Road Transport Act (1951 law No. 183) Article 2 Paragraph 8 and says driveway to prescribe to the Town Planning and Zoning Act enforcement regulations (1969 construction departmental order No. 49) Article 7 first.
(3) 6:00 a.m. says during 10:00 p.m. in the daytime.
(4) 10:00 p.m. says during 6:00 a.m. of the next day by night.
(5) We say measurement unit of sound pressure level to set of the decibel regulations of measurement (1992 law No. 51) separate table second.
Article 2 (limit of vehicle noise)
We do limit (we say "limit" as follows.) to set in environmental departmental order of noise-control regulations Article 17 Paragraph 1 according to the separate table.
Article 3 (exception of limit to affect area near the road taking main line traffic)
We do limit to affect area (boundary line of site of road says ranges from boundary line of site of road to 20 meters in the case of road having 15 meters, traffic lane more than 2 traffic lanes in the case of road having traffic lane where is lower than 2 traffic lanes.) near the road taking main line traffic in areas to advocate at separate table with 70db. regardless of regulations of preceding article in 75db., the night in the day.
Article 4 (limit that prefectural governors and Public Safety Commissions of To, Do, and Prefectures discuss and set)
Limit to modify area facing all of school, areas where facility needing calmness particularly gathers and is installed in such as hospitals or section of road carrying main line traffic or in areas to advocate at separate table regardless of regulations of previous Article 2 prefectural governors (when is in city prescribed in cabinet ordinance No. 324) Article 4 in noise-control regulations enforcement order (1968 the mayor. We can do with size of the same vehicle noise that) and Public Safety Commissions of To, Do, and Prefectures discuss and set as follows.
Article 5 (method for measurement of vehicle noise)
Limit prescribed in previous Article 3 shall depend on value at having measured by method to advocate next.
(1) We shall perform the measurement of the noise using sound-level meter which passed condition of regulations of measurement Article 71.
(2) Building (we say "houses" as follows.) that the measurement of the noise is offered for one such as house, hospital, school close to road But, we shall perform in the point that can measure size of the noise to arrive at houses when we perform in the boundary line of site of road when we exist, and we put distance from road as use of land of use except houses is performed along road, and houses keep.
In these cases, we do height measuring with position where the noise becomes problem in maintenance of living environment most in the lead direct direction of the point concerned.
(3) We shall perform the measurement of the noise for vehicle noise, as a general rule, to affect part except intersection among the roads concerned about three days admitted that we represent the situation of the vehicle noise concerned in consecutive seven days.
(4) Evaluation technique of the noise shall depend on equivalent noise level.
(5) As a general rule, method for measurement of the noise shall depend on method for measurement of noise level to fix for Japanese Industrial Standards Z8731, and it shall measure at position that can avoid influence of reflection that we cannot ignore with building.
But between building and road (include boundary line of site of road.) When we take the influence concerned into consideration and revise actual value and take appropriate measures when we measure of this in the point and cannot avoid influence of reflection that we cannot ignore with the building concerned, it is not this limit.
(6) When it is admitted that we have effect by the noise except vehicle noise or vehicle noise to affect road except the road concerned, we shall revise actual value in consideration for these influence.
(7) Volume of noise does value that we measured with value that, as a general rule, energy averaged through full time of 3 days for each division of time.
|Division of area||Division of time|
|In the daytime||By night|
|1||In a area and b areas 1 traffic lane|
Area that faces road to have
|65db. or less||55db. or less|
|2||It is 2 traffic lanes or more in a areas|
Area that faces road
|70db. or less||65db. or less|
|3||It is 2 traffic lanes or more in b area|
Area that faces road and
We have traffic lane in c area
Area that faces road
|75db. or less||70db. or less|
- We call area that prefectural governors set a area, b area and c area as area to advocate to each next issue each.
Area where it is offered 1 a area exclusively for one of house
Area that is offered as 2 b area masters for one of house
Area that is offered for one such as commerce, industry in conjunction with house of the number of 3 c area equivalency
This prefecture ordinance takes effect on April 1, 2000.
It enforces this prefecture ordinance from day (January 6, 2001) of the enforcement of law (1999 law No. 88) to revise a part of the inner cabinet bill.