commiss recommend august guidelin revis interim comput method industri nois aircraft nois road traffic nois railwai nois relat emiss data notifi document number text eea relev ec commiss european commun regard treati establish european commun regard direct ec european parliament council june relat assess manag environment nois point annex ii thereto accord annex ii direct ec interim comput method determin common indic lden lnight industri nois aircraft nois road traffic nois railwai nois recommend member state nation comput method member state chang comput method accord point annex ii direct ec recommend interim comput method adapt definit lden lnight respect commiss requir publish guidelin revis comput method provid emiss data road traffic nois railwai nois aircraft nois basi exist data measur set recommend accord opinion committe set articl direct ec european parliament council recommend guidelin revis interim comput method refer paragraph annex ii direct ec emiss data road traffic nois railwai nois aircraft nois basi exist data set annex recommend recommend address member state brussel august commiss margot wallström member commiss oj oj annex guidelin revis interim comput method industri nois aircraft nois road traffic nois railwai nois relat emiss data introduct accord articl annex ii direct ec interim comput method determin lden lnight road traffic nois railwai nois aircraft nois industri nois recommend member state nation comput method member state chang comput method method road traffic nois french nation comput method quot nmpb rout setra certu lcpc cstb quot refer quot arrêté du mai relatif au bruit de infrastructur routièr journal officiel du mai articl quot french standard quot xp quot method refer quot xp quot guidelin railwai nois netherland nation comput method publish quot reken en meetvoorschrift railverkeerslawaai ministeri volkshuisvest ruimtelijk orden en milieubeh novemb quot method refer quot rmr quot guidelin aircraft nois ecac ceac doc quot report standard method comput nois contour civil airport quot method refer quot ecac doc quot guidelin industri nois iso quot acoust abat sound propag outdoor part gener method calcul quot method refer quot iso quot guidelin abovement method adapt definit lden lnight guidelin relat revis interim comput method provid emiss data aircraft nois road traffic nois railwai nois basi exist data note data provid basi review exist data interim comput method recommend transport nois emiss data provid guidelin cover specif situat encount europ road rail traffic mean provid obtain addit data measur final data provid guidelin compulsori member state interim comput method free data provid data suitabl method concern adapt interim comput method gener adapt relat nois indic lden lnight gener consider articl annex direct ec defin nois indic ldai dai time indic leven even time indic lnight night time indic compound indic lden dai even night nois indic articl direct ec nois indic lden lnight calcul strateg nois map lden deriv ldai leven lnight formula gt refer graphic gt direct ec requir ldai leven lnight long term nois level iso determin dai even night period year iso defin averag long term level equival weight continu sound pressur level determin comput account variat sourc activ meteorolog condit influenc propag condit iso meteorolog correct term refer made meteorolog correct iso method determin appli correct provid final annex direct ec permit member state shorten even period hour daytim night time period lengthen basic equat calcul lden adapt reflect rate period lead gener form equat gt refer graphic gt te length shorter even period amp lt te amp lt td result length daytim period tn result length night time period td te tn hour receiv height purpos strateg nois map direct ec impos receiv point quot assess point quot height ground lden compound indic calcul ldai leven lnight height mandatori indic meteorolog correct annex direct ec defin characterist time period quot year quot respect sound emiss relev year emiss sound meteorolog condit averag year meteorolog condit respect addit inform provid direct consid averag year meteorolog commun common practic deriv averag meteorolog condit site statist analysi year detail meteorolog data measur site long term measur analysi reduc likelihood obtain suffici data site nois map simplifi form meteorolog data proport occurr variat propag condit suggest suffici data simplifi assumpt contain xp data chosen accord precautionari principl prevent principl appli eu environment legisl protect citizen potenti danger harm effect light recommend conserv favour propag approach select simplifi meteorolog data approach tabl recommend produc meteorolog correct calcul eu nois indic tabl meteorolog correct decis grid gt tabl gt adapt road traffic nois method quot xp quot descript calcul method recommend interim comput method road traffic nois french nation comput method quot nmpb rout setra certu lcpc cstb quot refer quot arrêté du mai relatif au bruit de infrastructur routièr journal officiel du mai articl quot french standard quot xp quot method describ detail procedur calcul sound level caus traffic vicin road take account meteorolog effect affect propag meteorolog correct calcul long term level long term level llongterm calcul formula gt refer graphic gt lf sound level calcul favour sound propag condit lh sound level calcul homogen sound propag condit long term occurr meteorolog condit favour propag sound determin summari tabl adapt need gt tabl gt railwai nois descript calcul method recommend interim comput method railwai nois quot rmr quot netherland nation comput method publish quot reken en meetvoorschrift railverkeerslawaai ministeri volkshuisvest ruimtelijk orden en milieubeh novemb quot calcul scheme srm simplifi scheme srm ii detail scheme condit scheme dutch document order determin method purpos strateg nois map direct ec summari tabl adapt need gt tabl gt aircraft nois descript calcul method recommend interim nois comput method aircraft nois ecac ceac doc quot report standard method comput nois contour civil airport quot approach model flight path annex ii direct ec state segment techniqu refer section ecac doc document provid procedur need segment calcul guidelin provid procedur note european civil aviat confer ecac launch revis doc view produc state art aircraft nois contour model direct ec publish juli explicitli refer version ecac doc attent paid revis version method adopt ecac consid method introduc annex ii direct ec recommend method aircraft nois comput introduct consid assess suitabl revis method strateg nois map requir direct ec segment techniqu line direct ec sound exposur level gener aircraft oper comput segment techniqu ecac doc refer techniqu provid mean implement comput guidelin recommend segment method technic manual integr nois model inm version publish januari method briefli text flight path straight circular section divid segment straight power set speed constant minimum length segment arc point comput point defin line segment point start arc point end arc point half arc flight path segment extend flight path segment perpendicular closest point approach pcpa observ slant distanc observ pcpa determin figur figur definit perpendicular closest point approach pcpa flight path slant distanc segment calcul point cp astrid segment ahead segment segment gt pic file quot en tif quot gt gt pic file quot en tif quot gt gt pic file quot en tif quot gt slant distanc pcpa defin data read nois power distanc npd curv defin elev angl distanc horizont plane calcul point cp ground vertic project pcpa defin later distanc calcul later attenu relev height chang segment height set calcul point cp astrid segment height pcpa linear interpol cp ahead segment height nearest end segment cp speed chang segment speed set calcul point cp astrid segment speed pcpa linear interpol cp ahead segment speed nearest end segment cp power set chang segment sound level power set chang level set calcul point cp astrid segment level pcpa linear interpol cp ahead segment relev level nearest end segment cp proport sound energi segment quot nois fraction quot calcul model inm default data refer la max base quot scale distanc quot sl refer inm technic manual calcul gt refer graphic gt actual speed durat flypast second quot scale distanc quot introduc ensur total exposur obtain quot nois fraction quot calcul consist npd data sound event level flypast calcul ad sound event level singl segment energet basi calcul nois level nois sound exposur calcul point total traffic determin sound exposur level sel calcul individu aircraft oper calcul base sel npd data refer speed knot jet aircraft knot small propel driven aeroplan gt refer graphic gt calcul base la max npd data default data refer gt refer graphic gt sel ref sel point ordin caus movement arriv departur rout aeroplan thrust shortest distanc nois power distanc curv thrust shortest distanc la sound level point ordin caus movement arriv departur rout aeroplan thrust shortest distanc nois power distanc curv thrust shortest distanc extra attenu sound propag later direct aeroplan horizont later distanc elev angl δl direct function roll nois start roll point δv correct actual speed flight path δv lg vref vref speed npd data actual speed flight path δa durat allow depend speed calcul δf correct finit length segment flight path number movement aircraft group flight path year determin time period dai even night separ direct ec nois indic lden lnight calcul gt refer graphic gt gt refer graphic gt number movement jth aircraft group ith flight path dai period averag dai ne number movement jth aircraft group ith flight path even period averag dai nn number movement jth aircraft group ith flight path night period averag dai tn durat night period second seli sound exposur level jth aircraft group ith flight path number movement averag dai calcul averag number movement year gt refer graphic gt movement separ count period dai even night distinguish index dai period even period night period formula lden addit db even period factor account number movement even period addit db night period factor account number movement night period summari tabl adapt need tabl present content ecac doc chapter chapter show similar differ requir addit need meet requir direct ec gt tabl gt industri nois descript calcul method recommend interim comput method industri nois iso quot acoust abat sound propag outdoor part gener method calcul quot method refer quot iso quot guidelin specifi engin method calcul attenu sound propag outdoor order predict environment nois level varieti sourc includ industri sourc summari tabl adapt need gt tabl gt emiss data road traffic nois quot guid du bruit quot measur procedur xp refer quot guid du bruit quot default emiss model road traffic nois calcul member state adopt interim comput method wish updat emiss factor measur procedur recommend note french author launch project design review emiss valu attent paid valu method develop obtain publish respons author consid input data calcul road traffic nois nois emiss level vehicl characteris maximum pass sound level lamax db measur centrelin trajectori vehicl sound level determin separ vehicl type speed traffic flow slope road identifi road surfac explicitli account remain compat origin measur condit measur addit vehicl acoust characterist made vehicl drive road surfac type cement concret slim bitumin concret half granul bitumin concret superfici seal superfici seal surfac correct ad scheme present measur made singl isol vehicl traffic specif circuit control condit vehicl speed measur doppler radar accuraci approxim slow speed traffic flow determin subject observ acceler deceler fluid measur microphon posit ground horizont centrelin vehicl trajectori xp accord specif guid du bruit sound power level lw nois emiss calcul measur sound pressur level lp vehicl speed gt refer graphic gt gt refer graphic gt nois emiss traffic nois emiss term nois emiss defin gt refer graphic gt vehicl speed emiss sound level term db sound level leq refer isophon due singl vehicl hour traffic condit function vehicl type speed veloc traffic flow longitudin profil vehicl type vehicl categori nois predict light vehicl vehicl tonn net load heavi vehicl vehicl greater equal tonn net load speed reason simplic paramet vehicl speed method averag speed rang km case lower speed lower km depend situat method refin mean subsequ traffic flow determin long term sound level leq suffici averag speed fleet vehicl averag speed fleet vehicl defin median speed speed reach exceed vehicl median speed half standard deviat speed averag speed determin method turn km set km data accur estim averag speed gener rule road segment maximum allow speed segment road segment defin allow maximum speed addit correct introduc lower speed rang lower km depend situat condit correct flow type appli final speed km set km type traffic flow traffic flow type complementari paramet speed accommod acceler deceler engin load pulsat continu traffic motion categori defin fluid continu flow vehicl move constant veloc road section interest quot fluid quot flow stabl space time period ten minut variat dai observ abrupt rhythmic variat acceler deceler steadi veloc flow type correspond traffic motorwai autobahn link interurban road urban expresswai rush hour major road urban environ puls continu flow flow signific proport vehicl transitori state acceler deceler stabl time exist abrupt variat flow small time period space moment time irregular concentr vehicl exist road section interest remain defin averag veloc type flow stabl repetit suffici long period time flow type correspond found citi centr road major road close satur dispatch connect road numer cross car park pedestrian cross junction hous puls acceler flow puls flow turbul signific proport vehicl acceler turn mean notion speed mean discret point stabl displac typic case traffic expresswai cross motorwai slip road tollbooth puls deceler flow opposit previou signific proport vehicl deceler gener found approach major urban cross motorwai expresswai exit approach tollbooth longitudin profil longitudin profil defin order account differ sound emiss function slope carriagewai horizont carriagewai horizont carriagewai section gradient direct traffic flow ascend carriagewai upward gradient direct traffic flow greater descend carriagewai downward gradient direct traffic flow case road definit directli applic case traffic separ calcul drive direct subsequ accumul result requir obtain precis estim quantifi nois emiss valu road traffic type schemat represent guid du bruit nomogram give sound level leq hour db nois emiss sound level separ singl light vehicl sound emiss quot elv quot singl heavi vehicl sound emiss quot ehv quot hour separ vehicl type function speed traffic flow longitudin profil sound level shown nomogram includ correct road surfac guidelin includ correct scheme frequenc depend basic sound power level lawi db compound point sourc octav band calcul individu sound emiss level light heavi vehicl obtain nomogram guid du bruit refer quot nomogram quot guidelin equat gt refer graphic gt law global sound power level metr length lane attribut sourc line db gt refer graphic gt elv sound emiss light vehicl defin nomogram ehv sound emiss heavi vehicl defin nomogram qlv volum light traffic refer interv qhv volum heavi vehicl refer interv road surfac nois level correct defin li length section sourc line repres compon point sourc meter spectral db octav band tabl tabl normalis weight octav band traffic nois spectrum calcul octav spectrum en gt tabl gt road surfac correct introduct speed nois emit vehicl domin tyre road contact nois depend vehicl speed type road surfac porou sound deaden surfac tyre type guid du bruit standard nois emiss standard road surfac scheme suggest introduc road surfac correct compat en iso provis surfac type definit smooth asphalt concret mastic refer road surfac defin en iso dens smooth textur asphalt concret stone mastic asphalt surfac maximum chip size mm porou surfac surfac void volum surfac year ag restrict account tendenc porou surfac absorpt time void fill special mainten appli ag restrict lift initi year term measur made determin acoust properti surfac sound reduc effect surfac function vehicl speed cement concret corrug asphalt includ cement concret coars textur asphalt smooth textur pave stone pave stone distanc smaller mm block rough textur pave stone pave stone distanc greater equal mm block open categori member state place correct surfac ensur harmonis result data obtain accord en iso data obtain enter tabl measur passag speed equal standard refer speed statist pass index spbi equat evalu effect percentag heavi vehicl calcul spbi percentag rang defin tabl amp gt tabl standard road surfac correct scheme gt tabl gt recommend correct scheme tabl propos road surfac correct scheme gt tabl gt railwai nois introduct dutch railwai nois comput method rmr emiss model detail chapter origin dutch text emiss model remain member state modif regard emiss data guidelin identifi dutch emiss databas recommend default databas measur method member state produc emiss data compens lack emiss data dutch roll stock dutch rail default databas nois emiss model prior calcul quot equival continu sound pressur level quot vehicl section railwai line follow servic guidelin railwai vehicl categori shown addit categori carri measur exist train categori exist categori provid dutch emiss databas primarili differenti propuls system wheel brake system gt tabl gt measur method nois emiss characterist railwai vehicl track determin measur measur procedur quot reken en meetvoorschrift railverkeerslawaai ministeri volkshuisvest ruimtelijk orden en milieubeh maart quot procedur determin characterist train categori dutch roll stock dutch track procedur dutch track procedur procedur simplifi method determin railwai vehicl alloc exist categori refer method construct vehicl imposs carri nois measur alloc basi type propuls system diesel electr hydraul brake system disc block procedur describ method obtain emiss data rail vehicl necessarili fit exist train categori call quot free categori quot introduc vehicl type assign nois emiss determin procedur data obtain manner account separ vehicl track sound radiat wheel track rough sourc nois traction nois roll nois aerodynam nois account height sourc procedur determin acoust characterist track construct sleeper ballast bed nois calcul method base fact track characterist octav band independ type vehicl speed vehicl verifi perform measur locat addit speed differ amp gt differ calcul track characterist db octav band correct depend speed addit research carri lead speed depend characterist emiss model calcul carri srm emiss valu db determin gt refer graphic gt enr emiss term rail vehicl categori brake train er emiss term brake train train categori total number categori present emiss valu rail vehicl categori determin gt refer graphic gt gt refer graphic gt standard emiss valu ac bc ar amp br provid rmr srm ii train categori sound sourc height height emiss valu octav band determin characteris emiss train categori emiss section railwai line calcul take account passag train categori fact categori sound sourc height passag train condit brake brake emiss factor octav band calcul gt refer graphic gt number train categori railwai line consider gt refer graphic gt resp gt refer graphic gt emiss term brake resp brake unit train train categori octav band assess height depend train categori calcul gt refer graphic gt gt refer graphic gt gt refer graphic gt gt refer graphic gt resp gt refer graphic gt gt refer graphic gt emiss term train categori brake resp brake condit octav band height qc number brake unit railwai vehicl categori concern qbr number brake unit railwai vehicl categori concern vc speed pass brake railwai vehicl vbr speed pass brake railwai vehicl bb type track condit railwai track estim occurr track disconnect cbb correct track discontinu rail rough aircraft nois introduct review databas guidelin provid default recommend comput aircraft nois airport ecac doc modifi underlin introduct guidelin default recommend data compulsori member state data provid suitabl ecac doc attent paid ongo initi relat establish updat internation agre databas civil aircraft nois futur databas provid jointli eurocontrol american feder aviat author default recommend comput aircraft nois review readili databas found document provid complet data cover nois power distanc data perform data type civil aircraft includ low nois aircraft gener quot öal richtlini lärmschutzzonen der umgebung von flughäfen planung und berechnungsgrundlagen österreichisch arbeitsr für lärmbekämpfung wien quot quot neue zivil flugzeugklassen für die anleitung zur berechnung von lärmschutzbereichen entwurf umweltbundesamt berlin quot data base group aircraft la max level formula calcul sel valu pass durat addit paramet sel calcul db la max gt refer graphic gt amp gt refer graphic gt express gt refer graphic gt constant approach fix wing aircraft slant distanc speed sound level thrust land thrust thrust reduct address sound level reduct δlξ height speed aircraft group default profil speed height versu distanc ground track start roll point greater distanc dh dσ sound level data perform data normalis temperatur humid pressur hpa temperatur product rel humid temperatur greater