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L.A. Street QualGrades [latimes.com], developed by the Los Angeles Times Data Desk, maps the pavement quality rating for each of the 68,000 street segments in L.A., the largest municipal system in the US with about 6,500 miles of paved roadway streets.

Using a state-of-the-art van equipped with cameras and lasers, the Bureau of Street Services graded each single street segment of L.A.'s vast street network from from A (dark green) to F (dark pink). The grades were based on a 100-point scale called the "pavement condition index".

The accompanying news article can be found here. Via Flowing Data.

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