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    Traffic Noise Study

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    Naqib
    The document describes a traffic noise study conducted near a bus stop. Noise levels were measured over 30 second intervals at two points near the road for an hour. The noise levels ranged from 30-130 dB with most readings between 40-60 dB but occasionally spiking higher when larger vehicles passed by. The L10 noise levels were calculated to be 65.18 dB at Point A and 65.01 dB at Point B.

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    Traffic Noise Study

    Uploaded by

    Naqib
    21 views4 pages
    The document describes a traffic noise study conducted near a bus stop. Noise levels were measured over 30 second intervals at two points near the road for an hour. The noise levels ranged from 30-130 dB with most readings between 40-60 dB but occasionally spiking higher when larger vehicles passed by. The L10 noise levels were calculated to be 65.18 dB at Point A and 65.01 dB at Point B.

    Original Title

    TRAFFIC NOISE STUDY

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    The document describes a traffic noise study conducted near a bus stop. Noise levels were measured over 30 second intervals at two points near the road for an hour. The noise levels ranged from 30-130 dB with most readings between 40-60 dB but occasionally spiking higher when larger vehicles passed by. The L10 noise levels were calculated to be 65.18 dB at Point A and 65.01 dB at Point B.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    21 views4 pages

    Traffic Noise Study

    Uploaded by

    Naqib
    The document describes a traffic noise study conducted near a bus stop. Noise levels were measured over 30 second intervals at two points near the road for an hour. The noise levels ranged from 30-130 dB with most readings between 40-60 dB but occasionally spiking higher when larger vehicles passed by. The L10 noise levels were calculated to be 65.18 dB at Point A and 65.01 dB at Point B.

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    TRAFFIC NOISE STUDY

    ECG 563 – TRAFFIC ENGINEERING


    SCHOOL OF CIVIL ENGINEERING, COLLEGE OF ENGINEERING, UiTM SHAH ALAM
    Observer: Afiq, Idzamuddin, Iqmal, Naqib Date: 11/10/2023
    Location: Near bus stop UiTM Day: Wednesday
    Start time: 3.30 p.m. Weather: Sunny
    Decibel C Range: 30 - 130
    (A/C);

    Point A

    No Time (seconds) Value (dB) Remark (Over/Under)


    1. 30 50.1 Some cars pass by
    2. 30 47.9 Some cars pass by
    3. 30 49.0 Some cars pass by
    4. 30 40.3 Some cars pass by
    5. 30 56.2 Some cars pass by
    6. 30 51.9 Some cars pass by
    7. 30 46.8 Some cars pass by
    8. 30 55.0 Some cars pass by
    9. 30 50.1 Some cars pass by
    10. 30 48.0 Some cars pass by
    11. 30 48.7 Some cars pass by
    12. 30 38.9 No vehicle
    13. 30 44.7 Some cars pass by
    14. 30 55.0 Some cars pass by
    15. 30 68.1 A group of motorcycles passed
    16. 30 60.7 Some cars pass by
    17. 30 45.7 Some cars pass by
    18. 30 46.5 Some cars pass by
    19. 30 43.6 Some cars pass by
    20. 30 40.5 Some cars pass by
    21. 30 41.2 Some cars pass by
    22. 30 40.4 Some cars pass by
    23. 30 40.6 Some cars pass by
    24. 30 39.8 No vehicle
    25. 30 46.7 Some cars pass by
    26. 30 40.1 Some cars pass by
    27. 30 51.0 Some cars pass by
    28. 30 48.3 Some cars pass by
    29. 30 43.4 Some cars pass by
    30. 30 40.4 Some cars pass by
    Point B

    No Time (seconds) Value (dB) Remark (Over/Under)


    31. 30 44.5 Some cars pass by
    32. 30 45.0 Some cars pass by
    33. 30 44.3 Some cars pass by
    34. 30 50.0 Some cars pass by
    35. 30 45.9 Some cars pass by
    36. 30 55.7 Some cars pass by
    37. 30 43.1 Some cars pass by
    38. 30 47.8 Some cars pass by
    39. 30 48.0 Some cars pass by
    40. 30 50.2 Some cars pass by
    41. 30 43.2 Some cars pass by
    42. 30 50.7 Some cars pass by
    43. 30 47.7 Some cars pass by
    44. 30 46.2 Some cars pass by
    45. 30 51.4 Some cars pass by
    46. 30 49.7 Some cars pass by
    47. 30 46.3 Some cars pass by
    48. 30 40.7 Some cars pass by
    49. 30 52.6 Some cars pass by
    50. 30 53.5 Some cars pass by
    51. 30 43.2 Some cars pass by
    52. 30 49.6 Some cars pass by
    53. 30 40.2 Some cars pass by
    54. 30 45.2 Some cars pass by
    55. 30 40.9 Some cars pass by
    56. 30 46.1 Some cars pass by
    57. 30 43.4 Some cars pass by
    58. 30 37.2 No vehicle
    59. 30 68.1 A bus passed
    60. 30 55.5 Some cars pass by

    • The distance between point A to point B is 78.3 meter.


    • The distance between noise level meter with centre of road is 2.3 meter.
    Point A
    80

    70

    60

    50
    Noise (dB)

    40
    Noise (dB)
    30 L10

    20

    10

    0
    0 100 200 300 400 500 600 700 800 900 1000
    Time (Seconds)

    GRAPH 1 : Noise (dB) Vs Time (sec) at point A

    Point B
    80

    70

    60

    50
    Noise (dB)

    40
    Noise (dB)
    30 L10

    20

    10

    0
    0 100 200 300 400 500 600 700 800 900 1000
    Time (Seconds)

    GRAPH 1 : Noise (dB) Vs Time (sec) at point B


    Determination of L10
    L10 = Max noise level - { (Max noise level – Min noise level)/100 × 10% }

    Point A
    L10 = 68.1 - { (68.1 – 38.9)/100 × 10% }
    = 65.18

    Point B
    L10 = 68.1 - { (68.1 – 37.2)/100 × 10% }
    = 65.01

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