PSZ 19:16 (Pind. 1/07) UNIVERSITI TEKNOLOGI MALAYSIA BORANG PENGESAHAN STATUS TESIS* Nama Penuh : MUHD NURAKMAL BIN MOHAMMAD RAZMI _________________________ Tarikh Lahir : 11 MEI 1988 Judul : STUDY OF TRAFFIC NOISE DUE TO TRANVERSE RUMBLE STRIP INSTALLATION AT _______________________________________________________ KG PENGKALAN RAJA, PONTIAN, JOHOR Sesi Akademik : 2011/2012 ______________ ______________________________________________ Saya mengaku bahawa tesis ini diklasifikasikan sebagai: SULIT (Mengandungi maklumat yang berdarjah keselamatan atau kepentingan Malaysia seperti yang termaktub di dalam AKTA RAHSIA RASMI 1972)* TERHAD (Mengandungi maklumat TERHAD yang telah ditentukan oleh organisasi/badan di mana penyelidikan dijalankan)* TIDAK TERHAD Saya bersetuju jika tesis ini diterbitkan sebagai akses terbuka atas talian (sepenuhnya) Saya mengaku bahawa Universiti Teknologi Malaysia mempunyai hak seperti berikut: 1. Tesis adalah hak milik Universiti Teknologi Malaysia. 2. Perpustakaan Universiti Teknologi Malaysia dibenarkan membuat salinan untuk rujukan pengajian sahaja. 3. Perpustakaan dibenarkan membuat salinan tesis ini untuk pertukaran atas sebab pengajian. Disahkan oleh: (TANDATANGAN PENULIS) 880511-03-5925 (TANDATANGAN PENYELIA) DR ZAITON BINTI HARON (NAMA PENYELIA) (NO.KAD PENGENALAN BARU) Tarikh: CATATAN: Tarikh: * Jika tesis ini SULIT ATAU TERHAD, sila lampirkan surat daripada pihak berkuasa/organisasi berkenaan dengan menyatakan sebab dan tempoh tesis perlu dikelaskan sedemikian. PENGESAHAN PENYELIA “Saya mengakui bahawa saya telah membaca karya ini dan pada pandangan saya karya ini memenuhi skop dan kualiti untuk tujuan penganugerahan Ijazah Sarjana Muda Kejuruteraan Awam” Tandatangan : …………………………………………… Nama DR. ZAITON BINTI HARON : …..………………………………………... Tarikh 27hb JUN 2012 : …………………………............................. STUDY OF TRAFFIC NOISE DUE TO TRANVERSE RUMBLE STRIP INSTALLATION AT KG PENGKALAN RAJA, PONTIAN, JOHOR MUHD NURAKMAL BIN MOHAMMAD RAZMI A report submitted in partial fulfillment of the requirements for the award ofthe degree of Bachelor of Civil Engineering Faculty of Civil Engineering Unversiti Teknologi Malaysia JUNE 2012 ii I declare that this project report entitled “STUDY OF TRAFFIC NOISE DUE TO TRANVERSE RUMBLE STRIP INSTALLATION AT KG PENGKALAN RAJA, PONTIAN, JOHOR” is the result of my own study except as cited in the reference. The project report has not been accepted for any degree and is not concurrently submitted in candidature of any other degree. Signature : ……………………….................... Name : MUHD NURAKMAL BIN MOHAMMAD RAZMI Date : 20 JUNE 2012 iii ACKNOWLEDGEMENT First of all, I would like to express my appreciation to my supervisor, Dr. Zaiton Bt Haron for her guidance, support, encouragement to me in order to complete this study and provide a better understanding about the integral bridge. Without her advices and motivation, this project report could not be completed and presented. Beside, I would like to thank my beloved family and friends for giving me their moral support when I faced difficulties in completing this study by sharing their ideas and views on this topic and providing assistance when I face other related challenges upon completing this study. Last but not least, I would like to thank other individuals who were directly or indirectly involved in helping me with this study. iv ABSTRACT Rumble strips, also known as sleeper lines or audible lines, is a road safety feature that alerts inattentive drivers to potential danger by causing a tactile vibration and audible rumbling, transmitted through the wheels into the car body. Transverse rumble strips (TRS) are widely used by local authority in Malaysia to reduce vehicle speed and alert drivers to any changes of the road. The objective of this study is; to measure the differences between road with TRS installation and road without TRS installation in terms of speed, and volume that contributed to the external noise produced. The measurements were carried out through the noise level measurement, vehicles speed measurement, and recording volume of vehicles that pass by through the entire road. The readings were recorded at a rural roadway that received complaints from public which is at Pengkalan Raja, Pontian, Johor. Results showed that TRS can increase the level of traffic noise, and annoyance response in community. The analysis also indicated that residents at the respective location receive strong impact that can lead to vigorous community reaction. The proposal containing all of the findings hopefully would be beneficial to authorities in improving the application practice of TRS. v ABSTRAK Jalur jidar, yang juga dikenali sebagai garisan tidur atau garisan yang menghasilkan bunyi, adalah satu ciri keselamatan jalan raya yang memberi amaran kepada pemandu akan bahaya atau amaran yang akan dihadapi melalui getaran pada tayar apabila tayar bersentuhan dengan permukaan jalan yang mempunyai jalur jidar melintang. Jalur jidar melintang (TRS) adalah digunakan secara meluas oleh pihak berkuasa tempatan di Malaysia untuk mengurangkan kelajuan kenderaan dan menjadikan pemandu lebih peka kepada sebarang perubahan di jalan raya. Objektif kajian ini adalah untuk mengukur perbezaan tahap bunyi di antara jalan raya yang mempunyai jalur jidar melintang dan jalan tanpa pemasangan jalur jidar melintang dalam jangka laju, dan jumlah kenderaan yang menyumbang kepada bunyi luaran yang dihasilkan. Pengukuran telah dijalankan melalui pengukuran tahap bunyi, pengukuran kelajuan kenderaan, dan jumlah rakaman kenderaan melalui jalan keseluruhan. Bacaan telah diambil pada jalan luar bandar yang menerima aduan daripada orang ramai yang berada di Pengkalan Raja, Pontian, Johor. Hasil kajian menunjukkan bahawa jalur jidar melintang boleh meningkatkan tahap gangguan bunyi bising lalu lintas, dan tindak balas gangguan bunyi bising kepada penduduk setempat. Analisis juga menunjukkan bahawa penduduk di kawasan yang menerima impak yang sangat kuat yang boleh membawa kepada gangguan kesihatan. Cadangan di dalam kajian itu diharap akan memberi manfaat kepada pihak berkuasa dalam menambahbaikan penggunaan jalur jidar melintang. vi TABLE OF CONTENT CHAPTER 1 TITLE PAGE DECLARATION ii ACKNOWLEDGEMENT iii ABSTRACT iv ABSTRAK v TABLE OF CONTENT vi LIST OF TABLE ix LIST OF FIGURE x LIST OF APPENDICES xii INTRODUCTION 1.1 Introduction 1 1.2 Statement Of Problem 2 1.3 Research Objective 3 1.4 Scope of Study 4 1.5 Importance of the Study 4 vii 2 LITERATURE REVIEW 2.1 Introduction 6 2.2 Rumble strips 7 2.3 Shapes of rumble strip 2.4 2.5 Milled-in Rumble Strip 9 2.3.2 Rolled-in Rumble Strip 10 2.3.3 Formed Rumble Strip 12 2.3.4 Raised Rumble Strip 13 Types of Rumble Strip 2.4.1 Shoulder Rumble Strip 14 2.4.2 Centerline Rumble Strip 17 2.4.3 Tranverse Rumble Strip 18 How Drivers Perceive Speed 2.5.1 Road Factors 19 2.5.2 Perceptual Cues 20 2.5 Thermoplastic Materials 2.6 Impact of Rumble Strips 2.8 3 2.3.1 21 2.5.1 Safety 22 2.5.2 Noise 23 Basic Sound 2.8.1 Decibel Scale dB 26 2.8.2 Sound Weighing Scale 27 2.8.3 L10, L90 AND LAeq 28 METHODOLOGY 3.1 Introduction 30 3.2 Design of Study 31 3.3 Evaluation of Noise Annoyance among community 32 induced by TRS 3.4 3.3.1 Case Study Locations 32 3.3.2 Sound Level Meter 33 3.3.3 Data 35 Data Analysis 37 viii 3.5 4 Conclusion 39 ANALYSIS AND DISCUSSION 4.1 Introduction 40 4.2 Times versus Sound Pressure Level (LAeq) 40 4.3.1 LAeq, 1hr during weekdays and weekends. 40 4.3.2 LAeq Day, 15hr during weekends and 43 weekdays 4.3 Times versus Sound Pressure Level (L10) 44 4.4 Sound Pressure Level (LAeq) and Speed versus Time 47 4.5 Sound Pressure Level (L10) and Speed versus Time 49 4.6 Sound Pressure Level (LAeq) and Volume versus 52 Time 5 4.7 Sound Pressure Level (L10) and Volume versus Time 53 4.8 Summary 56 CONCLUSION AND DISCUSSION 5.1 Introduction 57 5.2 Conclusion 57 5.3 Suggestion 58 REFFERENCES 60 APPENDIX A APPENDIX B ix LIST OF TABLE NO. TITLE PAGE 2.1 Sound Level and Noise Source or Activity (Minor,2005). 27 3.1 Minimum Noise Level Department of Environment (LAeq) 38 for the planning and development (DOE, 2004). 4.1 Average noise level (LAeq) on weekday’s peak hour 41 4.2 Average noise level (LAeq) on weekend’s peak hour 41 4.3 LAeq, 15hr for weekends and weekdays. 43 4.4 Average noise level (L10) on weekday’s peak hour 45 4.5 Average noise level (L10) on weekend’s peak hour 45 4.6 Average noise level (LAeq) and speed on weekday’s peak hour 47 4.7 Average noise level (LAeq) and speed on weekend’s peak hour 48 4.8 Average noise level (L10) and speed on weekday’s peak hour 49 4.9 Average noise level (L10) and speed on weekend’s peak hour 50 4.10 Average volume and noise level (LAeq) on weekday’s peak 52 hour 4.11 Average volume and noise level (LAeq) on weekend’s peak 53 hour 4.12 Average volume and noise level (L10) on weekday’s peak 54 hour 4.13 Average volume and noise level (L10) on weekend’s peak hour 55 x LIST OF FIGURE NO. TITLE PAGE 2.1 Milled-in Rumble Strips 10 2.2 Rolled-in Rumble Strips 11 2.3 Formed Rumble Strips 12 2.4 Raised Rumble Strips 14 2.5 Shoulder Rumble Strips 15 2.6 Shoulder Rumble Strips 16 2.7 Centerline Rumble Strip 17 2.8 Tranverse Rumble Strip 18 2.9 Weighing scale A, B, C and D (Minor, 2005) 27 2.10 29 2.11 A typical record of the traffic noise measurements (Turner and Pretlove, 1991) Example Graf LAeq versus time 29 3.1 Kampung Pengkalan Raja surrounding 33 3.2 TRS profile in Kampung Pengkalan Raja 33 3.3 Pulsar Sound Level Meter dan Sound Level Calibrator 34 3.4 Radar Recorder 34 3.5 Anemometer 35 3.6 The position of Sound level meter at the roadside 36 3.7 Controlled experiment to study the relationship between the 37 level of sound and the speed of the vehicle. 4.1 Average noise level (LAeq, 1hr) on weekday’s peak hour 41 4.2 Average noise level (LAeq, 1hr) on weekend’s peak hour 42 4.3 LAeq, 15hr for weekends and weekdays 43 4.4 Average noise level (L10) on weekday’s peak hour 45 4.5 Average noise level (L10) on weekend’s peak hour 46 4.6 Average noise level (LAeq) and speed on weekdays versus Time 47 4.7 Average noise level (LAeq) and speed on weekends versus Time 48 xi 4.8 Average time vs sound pressure level, L10(peak hour on 49 weekdays) 4.9 Average sound pressure level, L10 (peak hour on weekends) and 50 speed vs Time 4.10 Average volume and noise level on weekday’s peak hour 52 4.11 Average volume and noise level (LAeq) on weekend’s peak hour 53 4.12 Average volume and noise level (L10) on weekday’s peak hour 54 4.13 Average volume and noise level (L10) on weekend’s peak hour 55 xii LIST OF APPENDIX APPENDIX A • The Planning Guideline for Environmental Noise and Limit 2004, Department Of Environment, Malaysia. APPENDIX B • LAeq data of five minutes interval for weekdays • LAeq data of five minutes interval for weekend • L10 data of five minutes interval for weekdays • L10 data of five minutes interval for weekend CHAPTER 1 INTRODUCTION 1.1 Introduction Transverse rumble strips (TRS) may be used to call the road user’s attention to standard regulatory and warning devices or to alert the road user of a changing roadway environment where there is a need to exercise extraordinary caution. TRS consist of raised bands of material or grooves cut in the pavement perpendicular to the direction of vehicular travel. These grooves provide a minimal amount of vertical deflection of a vehicle’s wheel, resulting in the transmission of noise and vibration in order to draw the road user’s attention to the feature of the road ahead. Rumble Strips are an effective countermeasure for preventing roadway departure crashes. The noise and vibration produced by rumble strips alert drivers when they leave the travelled way. Rumble stripes is the term used for rumble strips painted with a retroreflective coating to increase the visibility of the pavement edge at night and during inclement weather conditions. In favourable circumstances, rumble strips are effective (and cost-effective) at reducing accidents due to inattention. On freeways and motorways, the effectiveness of shoulder rumble strips is largely dependent on a wide stable shoulder for a recovery. On two-lane roads, the effect of shoulder width is not as pronounced. 2 1.2 Statement Of Problem According to an article in a newspaper on 1st July 2002, Malaysia hopes to reduce the fatal road accident rate to two deaths per 10,000 registered vehicles by 2020 from the present 5.17. The main cause of roadway departure crashes is driver drowsiness and inattention, which are sometimes compounded by driving too fast. Alcohol and drugs can contribute to both fatigue and speed. Driver fatigue also is induced by highway hypnosis, which occurs when the lines and stripes on long, monotonous stretches of highway reduce the driver’s concentration. When drivers stray from the travel lane, rumble strips rouse their attention to allow a safe recovery. Rumble strips are also helpful in alerting drivers to the lane limits where conditions such as rain, fog, snow or dust may reduce the driver’s visibility. In attempt to reduce speed on roadway segment where speed and accident is considered to be a safety concern, various low cost countermeasures have been investigated. Such countermeasures include Transverse Rumble Strip that gives psychological appearance of narrowing and/or increasing speed have been considered as a relatively low-cost treatment. But there are some report based on the problem arise from this installation such noise disturbance to the surrounding area. Noise is some of a big problem nowadays. If we refer to the World Health Organization (WHO), noise can affect directly to human health such as high pressure and emotional distress (Schomer, 2001). Noisecan cause long-term effects of chronic sleep disorders, communication disorders, emotional stressthat would affect the quality of life of normal man (Schomer, 2001). In fact, there are studies that found that noise contributes to cardiovascular problems and heart disease because of stress and deck high emotional disorders (Sorensen et al., 2011). When this problem occurs, public awareness is needed so that proper consideration could be obtained in the determination of action to prevent it. To ensure the comfort ability of the community life, all these values should be analyzed and studied, both the positive and negative, and appropriate action should be taken so 3 that its effects balanced to be applied. Margin of the best bands are able to carry out its functions as an important element of road safety, in addition to not increase the level of noise that can interfere with the local community. Therefore, this study is to examine the effectiveness of cross border strip in reducing vehicle speed, in addition to studying the production of external noise produced and the impact on the speed of sound production. Hopefully, this research can be consulted on the future, as well as raise awareness of society about the application of horizontal margin of Goliath on the road. Kg. Pengkalan Raja, Pontian is a village housing area. There are about two long set of TRS at the place. Distance from a house to TRS is about s ten meters. Earlier observation and random interviews found that the local people are annoyed with the noise of TRS. Local representative has lodged a report to authority. However, no further action has been taken. Therefore, evaluations are required in order to determine the effectiveness of TRS installation and noise effect that interfere with the surrounding. 1.3 Research Objective Although there have been some limited evaluations of rumble strips in previous studies, no significant field evaluation were performed. The objectives of this study are to: 1. To know the relationship between noise level, speed and traffic volume to the pattern of noise produce from TRS 2. To determine whether the level of noise that produce by TRS will annoy nearby residents. 4 1.4 Scope of Study The scope of study is about the noise level that produce by tranverse rumble strip to the surrounding area especially in residential area: 1. This study will be focusing about Tranverse Rumble Strip and their type such as raised rumble strip that the most popular in Malaysia. 2. Since MPJBT get some complain from two area in Pontian, Johor about the noise that produced by tranverse rumble strip, the research will be conduct in that area. 3. Noise study will focus on transverse rumble strip in Malaysia, the type of thermoplastic woke up and used as material in stallation. 4. Sound level measurement carried out for an hour with an interva lof five minutes. 5. Parameters used for analysis in units of decibels 15hrs Laeq dB (A). 6. This study was conducted in accordance with guide lines from the Department of Environment, Malaysia, and the Planning Guidelines for Environmental Noise Level, 2004. 1.5 Importance of the Study The study of this research is about the factors of noises produced by tranverse rumble strip. The noise level will be defined at the final part of this study. Hopefully the authority of the target area would take and utilize some information 5 from this study and take action how to solve the noise pollution produced by tranverse rumble strip and at the same time can improve the traffic safety that can satisfy the people on that area. The study will produce effective design guidance margin strip across. Effective rumble strip is capable of carrying out its functions of road safety such as warning the driver, without interfering with the community and environment by noise. The results of this study can also be used as a reference on the optimum distance of residential communities and the road.