Matches in SemOpenAlex for { <https://semopenalex.org/work/W644904541> ?p ?o ?g. }
Showing items 1 to 73 of
73
with 100 items per page.
- W644904541 abstract "The accuracy of traffic noise predictions obtained using the TRRL computer model of traffic noise depends to a considerable extent on the degree of simplification adopted in categorising vehicles according to their sound output and speed in the traffic stream. This report examines and summarises the available data on the acoustic classification of vehicles in traffic streams for predicting traffic noise. Measurements of speed, noise level and vehicle type have been made in road conditions ranging from fairly congested urban situations with speeds around 20 km/h to free flow on motorways with speeds over 100 km/h. At speeds greater than 50 km/h vehicle noise increases with speed at approximately 9 db(a) per doubling of speed and there is a clear distinction between the noise from heavy vehicles, i.e. Those exceeding 1525 kg unladen weight, and light vehicles. At low speeds, below 30 km/h, vehicle noise levels are independent of vehicle speed. The vehicle population can be conveniently divided into three distinct groups; light vehicles less than 3000 kg unladen weight, medium heavy commercial vehicles with 2 axles including buses and coaches and heavy vehicles which include all commercial vehicles with 3 or more axles. The measurements have been used to construct approximate vehicle noise levels and speed characteristics over the speed range 20-100 km/h for up to 6 vehicle categories, and used as input in the TRRL computer model of traffic noise. By varying the number of vehicle categories in the model it was found that the least number of categories that could be used without causing A significant change in the accuracy of prediction for urban roads was three. A comparison between measured and predicted values of l10 using the computer model with three vehicle categories at 11 urban sites showed fair agreement, indicating the accurate computer predictions of traffic noise for urban traffic conditions can be achieved by extending vehicle noise level and speed characteristics to the lower speeds typical of urban traffic conditions.(a)" @default.
- W644904541 created "2016-06-24" @default.
- W644904541 creator A5016059366 @default.
- W644904541 creator A5034462307 @default.
- W644904541 date "1977-01-01" @default.
- W644904541 modified "2023-10-11" @default.
- W644904541 title "CLASSIFYING ROAD VEHICLES FOR THE PREDICTION OF ROAD TRAFFIC NOISE" @default.
- W644904541 hasPublicationYear "1977" @default.
- W644904541 type Work @default.
- W644904541 sameAs 644904541 @default.
- W644904541 citedByCount "2" @default.
- W644904541 crossrefType "journal-article" @default.
- W644904541 hasAuthorship W644904541A5016059366 @default.
- W644904541 hasAuthorship W644904541A5034462307 @default.
- W644904541 hasConcept C115961682 @default.
- W644904541 hasConcept C127413603 @default.
- W644904541 hasConcept C129727815 @default.
- W644904541 hasConcept C146978453 @default.
- W644904541 hasConcept C154945302 @default.
- W644904541 hasConcept C163294075 @default.
- W644904541 hasConcept C171146098 @default.
- W644904541 hasConcept C204323151 @default.
- W644904541 hasConcept C207512268 @default.
- W644904541 hasConcept C2781353297 @default.
- W644904541 hasConcept C38652104 @default.
- W644904541 hasConcept C39432304 @default.
- W644904541 hasConcept C41008148 @default.
- W644904541 hasConcept C44154836 @default.
- W644904541 hasConcept C66938386 @default.
- W644904541 hasConcept C99498987 @default.
- W644904541 hasConceptScore W644904541C115961682 @default.
- W644904541 hasConceptScore W644904541C127413603 @default.
- W644904541 hasConceptScore W644904541C129727815 @default.
- W644904541 hasConceptScore W644904541C146978453 @default.
- W644904541 hasConceptScore W644904541C154945302 @default.
- W644904541 hasConceptScore W644904541C163294075 @default.
- W644904541 hasConceptScore W644904541C171146098 @default.
- W644904541 hasConceptScore W644904541C204323151 @default.
- W644904541 hasConceptScore W644904541C207512268 @default.
- W644904541 hasConceptScore W644904541C2781353297 @default.
- W644904541 hasConceptScore W644904541C38652104 @default.
- W644904541 hasConceptScore W644904541C39432304 @default.
- W644904541 hasConceptScore W644904541C41008148 @default.
- W644904541 hasConceptScore W644904541C44154836 @default.
- W644904541 hasConceptScore W644904541C66938386 @default.
- W644904541 hasConceptScore W644904541C99498987 @default.
- W644904541 hasLocation W6449045411 @default.
- W644904541 hasOpenAccess W644904541 @default.
- W644904541 hasPrimaryLocation W6449045411 @default.
- W644904541 hasRelatedWork W130453423 @default.
- W644904541 hasRelatedWork W166044628 @default.
- W644904541 hasRelatedWork W1974500373 @default.
- W644904541 hasRelatedWork W2028810031 @default.
- W644904541 hasRelatedWork W2084807121 @default.
- W644904541 hasRelatedWork W2148205466 @default.
- W644904541 hasRelatedWork W2180359134 @default.
- W644904541 hasRelatedWork W2240207890 @default.
- W644904541 hasRelatedWork W3000451638 @default.
- W644904541 hasRelatedWork W3015223336 @default.
- W644904541 hasRelatedWork W569750831 @default.
- W644904541 hasRelatedWork W572207025 @default.
- W644904541 hasRelatedWork W600103149 @default.
- W644904541 hasRelatedWork W606946360 @default.
- W644904541 hasRelatedWork W609522914 @default.
- W644904541 hasRelatedWork W615367359 @default.
- W644904541 hasRelatedWork W650993946 @default.
- W644904541 hasRelatedWork W651654307 @default.
- W644904541 hasRelatedWork W653724002 @default.
- W644904541 hasRelatedWork W777620470 @default.
- W644904541 isParatext "false" @default.
- W644904541 isRetracted "false" @default.
- W644904541 magId "644904541" @default.
- W644904541 workType "article" @default.