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City to test delineators, raised markers and adaptive bump-outs at multiple sites this summer
Summary
Staff described two adaptive project packages scheduled for late‑summer construction: one tests delineators and modular bump-outs (including 'armadillo' markers and candle delineators) at several schools and corridors; the second uses West Quadrant TIF funds for adaptive treatments on the Chestnut–Elm greenway ahead of permanent changes.
City staff described two small-works construction packages planned for late summer that will trial low‑cost adaptive safety treatments on city streets.
The first package comprises traffic-calming adaptive installations already designed (delineator-style, modular bump outs at school crossings and gaps in bike lanes) plus a separate $150,000 test of bicycle delineator products that council directed staff to evaluate. Test locations include Regal/Woodside and other elementary-school crossings, a gap closure on Barnes Road, and three delineator-marker test runs: a two-way cycletrack buffer on Belt Street, an armadillo/candle combination on Strong Road and Ziegler-style markers on Riverside Avenue.
Inga (city project lead) said the tests will prioritize maintenance performance, durability and user feedback; the items are intended to be removable prototypes that could be replaced by permanent concrete works if results are favorable. Staff noted they will coordinate with the Bicycle Advisory Board for user input and invited the commission to provide observations.
The second package is funded through West Quadrant TIF and focuses on interim improvements identified in the Chestnut–Elm Greenway study. Proposed work there includes painted crosswalk emphasis, parking removals to enable contraflow or one‑way bike maneuvers at Boone and Elm, and corner bump‑outs at Elm and Broadway that could later be converted to concrete.
Commissioners and accessibility advocates asked about pedestrian wayfinding and accessibility where painted or delineated treatments do not alter the curb line. Staff said they will not remove truncated domes or existing ramps; they acknowledged painted bump-outs can create potential confusion for a person with vision loss and said the concrete option is preferred where tactile guidance is required. Staff also said outreach and public feedback mechanisms for the trials are under consideration; they plan to collect maintenance and user feedback as part of the demonstrations.
Construction will be executed through small-works procurement constrained to $300,000 per package, with the West Quadrant package limited to projects within that funding area.
