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Plan Commission recommends clarifying clear line-of-sight rules for commercial driveway intersections
Summary
The commission recommended revisions that move clear line-of-sight regulations out of definitions, keep 30x30 public-street and 20x20 private-driveway triangles, and add an alternate 20-foot driver-centered standard at commercial driveways controlled by a stop bar/sign. Recommendation goes to Village Board Feb. 6, 2025.
The Lombard Plan Commission recommended approval of zoning text amendments that clarify and reorganize the village’s clear line-of-sight regulations. The commission voted to forward the recommendation to the Village Board for final action Feb. 6, 2025.
Bill (Director Heniff) told commissioners that staff engaged the village traffic consultant (KLOA) and Public Works to review an instance where a freestanding sign at a recently constructed commercial site intruded into the defined clear line-of-sight area. As a result of the review, staff proposed moving regulations out of the ordinance’s definition section into a substantive code section, clarify measurement from the outer edge of the right-of-way, retain existing 30-by-30-foot intersections for public streets and 20-by-20-foot triangles for private residential driveways, and add a narrowly targeted alternate standard for certain commercial private driveways.
Under the proposed alternate standard, at private commercial driveways that are controlled by a stop bar and stop sign and that allow multidirectional movement (for example, where drivers stop before entering a multi-lane or two-way public street), the clear line-of-sight area would be measured from the driver’s stopped position and use a 20-foot standard focused on the center of the driveway approach. Staff said the change reflects measured driver sight-lines in such configurations and would provide an administrable alternative to ad hoc variance requests.
Commission discussion asked for a clarifying reference to “multidirectional” entrances in the text; the Plan Commission included that addition in its recommendation. Commissioner Springberg moved to accept the interdepartmental findings and recommend approval of PC 25-3 with the additional text clarifying multidirectional commercial entrances; Commissioner Flanagan seconded. A roll call vote recorded aye votes from Commissioners Springberg, Flanagan, Johnson, Verson and Chair Giuliano. The recommendation will be forwarded to the Village Board on Feb. 6, 2025.
