Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: AASHTO CPM:2008
• Năm ban hành / Publication date: 2008
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: COMPARATIVE PERFORMANCE MEASUREMENT FOR PAVEMENT SMOOTHNESS
• Số trang / Page: 78

Phạm vi áp dụng / Scope of standard

Research Objectives: The objectives of this research project
were to facilitate the process of comparing the performance of peer
state DOTs using the IRI; prepare, analyze, and evaluate the
performance data; and identify and document good practices related
to achievement of smooth pavement. In addition to identifying
causal links which may exist between network-level pavement
smoothness and best practices, an important objective of this
project was to facilitate future use of comparative analysis of
pavement smoothness performance, by identifying analysis approaches
and measurement techniques that can, over time, achieve a greater
degree of consistency and comparability. While states measure
pavement conditions in various ways, oft en using multiple
indicators, this project was limited to comparisons of pavement
smoothness on the Interstate System. This focus on the Interstate
System eliminates much of the variability in IRI measurement that
is related to measurement speed and speed changes, short segment
lengths, and the presence of traffi c signals. It is important to
note that some states employ diff erent pavement construction and
management practices on Interstates than for other roadways, so the
results of this research should be considered valid for Interstates
only.