page_title: Chipseal
section_title: Noise and vibrational effects
hierarchical_section_title: Chipseal / Noise and vibrational effects
caption_attribution_description: A close-up view of chipseal road surface
context_page_description: Chipseal is a pavement surface treatment that combines one or more layer of asphalt with one or more layer of fine aggregate. In the United States, chipseals are typically used on rural roads carrying lower traffic volumes, and the process is often referred to as asphaltic surface treatment. This type of surface has a variety of other names including tar-seal or tarseal, tar and chip, sprayed seal or surface dressing.
context_section_description: The rough wearing surface of the chipseal generates more roadway noise at any operating speed than do typical asphalt or concrete surfaces. These sound intensities increase with higher vehicle speeds. There is a considerable range in acoustical intensities produced depending upon the specific tire tread design and its interaction with the roadway surface type.
  The rough surface causes noticeable increases in vibration and rolling resistance for bicyclists, and increased tire wear in all types of tires. 
  Vehicle speed can affect the set up time with chipseal. Shortly after construction (depending on weather conditions) the set speed for chipseal is 10–15 miles per hour (16–24 km/h) for the first 24–48 hours after construction.
caption: A close-up view of chipseal surface
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