Fig. 4

Reliability of Street Segment Audit (SSA) Items. Source: Author’s Calculations. Legend: Krippendorff’s alpha (KA) in green or Percent inter-observer agreement (PO) in blue are displayed. Color-coding show levels of agreement (low, medium or high). While KA is more rigorous, when the distribution of responses for any item is skewed (i.e. a single response category with prevalence > 95%), we cannot obtain stable estimates of the KA statistic. Therefore, we report the PO statistic for these items. Also, “na” indicates that the item was not assessed in that data collection year