Miles of existing non-ADA compliant sidewalks

ADA (Americans with Disabilities Act) compliant sidewalks is an important component of transportation equity, and can greatly improve the mobility of community members with disabilities. In the Sidewalk Explorer, an interactive viewer for the Sidewalk Network Inventory and Assessment conducted by CUUATS staff, a compliance index was developed based on a thorough inventory of the pedestrian network. The results of the inventory are analyzed using an ADA compliance index that scores each variable on a scale from 0 to 100. A score of 100 represents preliminary compliance with the proposed Public Right-of-Way Accessibility Guidelines (PROWAG). A similar index rates condition for sidewalks and curb ramps.

The 2017 data showed modest gains in accessibility over 2016. Sidewalk compliance scores improved slightly compared to 2016, reversing a downward trend over the last two years. Vertical faults remained a persistent challenge, but they also showed a small improvement over the last year. Curb ramps had the greatest gains in ADA compliance, though the pace of the change was influenced by changes in ramp type. (In many cases, perpendicular ramps were replaced by combination ramps, which count as two ramp records in our database. Thus, the number of compliant ramps increased faster than the number of non-compliant ramps decreased.) Compliance scores for crosswalks and pedestrian signals remained stable compared to 2016.

Even though the original Performance Measure refers to sidewalks, we are taking improvements made on curb ramps into consideration, which leads to a Positive rating for this Performance Measure in 2017.

In 2016, the results of the analysis showed increased compliance scores for curb ramps and crosswalk compared to the baseline data (2014-2015).  While overall ADA compliance for sidewalks appears to have declined between the baseline and 2017, the numbers only tell part of the story. Most of the local agencies have been focusing their ADA upgrades on curb ramps. In addition, the decrease in overall compliance is almost entirely due to changes in vertical fault scores, which are the result of several factors:

  • Challenges of tracking spot improvements, such as beveling
  • Difficulty of precisely measuring faults
  • Scoring of blocks based on the single largest fault
  • Limited fault size categories
  • Enlargement of faults due to freeze/thaw cycles and other factors

Of these factors, only the last one reflects a true degradation of sidewalk ADA compliance.

Non-ADA Compliant Sidewalks PM Summary

Goal Increase accessibility, connectivity, and mobility of people and freight to all areas of the region through the use of an interconnected multi- modal system of transportation that is cost-effective for people, businesses, and institutions that will increase the efficiency of the transportation system by allowing freedom of choice in all modes of transportation including active modes whenever possible.
Objective Upgrade 2015 existing sidewalk network within the Champaign- Urbana urbanized area by 10% to be ADA-compliant by 2020.
Performance Measure Miles of existing non-ADA compliant sidewalks upgraded along paved roads in the urbanized area
2016 Rating

41.5% of the curb ramps in the study area scored above 90 on the compliance index in 2016, an increase of 2.2% from the baseline data. There was a slight decrease in the sidewalk compliance score in 2016, which was largely due to the limitations in data collection methods. This Performance Measure receives a Positive Rating as the ADA compliance levels of the pedestrian facilities in the urbanized area have been improving since 2015.

2017 Rating

43.4% of the curb ramps in the study area scored above 90 on the compliance index in 2017, an increase of 10.4% from the baseline data. Sidewalk compliance scores improved slightly compared to 2016, reversing a downward trend over the last two years. This Performance Measure receives a Positive Rating as the ADA compliance levels of the pedestrian facilities in the urbanized area have been improving since 2015.