Dylan M. Duncan v. Town of Greece and County of Monroe
Attorneys and Parties
Brief Summary
Municipal liability for traffic signal malfunction and roadway safety; negligence in installation and maintenance of traffic control devices.
Supreme Court, Monroe County granted the County of Monroe's motions under CPLR 3211(a)(7) [motion to dismiss for failure to state a cause of action] and CPLR 3212 [summary judgment standard], dismissing the complaint against the County.
The appellate court modified by reinstating claims against the County for failure to maintain the traffic signal in a reasonably safe condition, negligent installation/creation of the condition, and claims relying on res ipsa loquitur; it also reversed the CPLR 3211(a)(7) dismissal. The remainder (lack of actual or constructive notice) was affirmed.
Plaintiff’s expert affidavit raised triable issues of fact on negligent maintenance and installation, and questions existed as to the applicability of res ipsa loquitur. The complaint, as amplified by the bill of particulars, sufficiently pleaded negligence, including negligent installation. However, the County established lack of actual or constructive notice, and plaintiff failed to raise a triable issue on notice.
Background
Plaintiff was injured in a collision at an intersection when a pipe holding one of the signal heads broke, allowing that signal head to rotate 90 degrees. As a result, at least one signal head in each direction displayed a green light, and the vehicles entered the intersection on green, leading to a perpendicular collision. Plaintiff alleged defendants were negligent in creating a dangerous condition by failing to properly design, install, inspect, maintain, and repair the traffic signal.
Lower Court Decision
Supreme Court (Justice Vincent M. Dinolfo) granted the County of Monroe’s CPLR 3211(a)(7) motion to dismiss and CPLR 3212 motion for summary judgment, dismissing all claims against the County.
Appellate Division Reversal
The Appellate Division modified. It held that, even assuming the County met its initial burden, plaintiff’s expert affidavit created triable issues of fact on negligent maintenance and negligent installation/creation of the defective condition, and that res ipsa loquitur could apply. It reinstated those claims and denied the County’s CPLR 3211(a)(7) motion because the complaint, as amplified by the bill of particulars, stated a viable negligence claim, including negligent installation. The court affirmed the ruling that the County lacked actual or constructive notice of the defect and plaintiff failed to raise an issue of fact on notice.
Legal Significance
The decision underscores that municipalities may face liability for traffic signal malfunctions where plaintiffs raise triable issues of negligent installation or maintenance, even absent proof of prior notice. It also confirms that a bill of particulars can amplify a negligence complaint to include specific theories (e.g., negligent installation) and that res ipsa loquitur may be available when a traffic signal’s failure is of a kind that ordinarily does not occur absent negligence.
In traffic signal malfunction cases, lack of prior notice will not defeat claims that a municipality created the dangerous condition or failed to maintain the signal, especially where an expert affidavit and res ipsa loquitur support triable issues; complaints adequately amplified by a bill of particulars survive CPLR 3211(a)(7) dismissal.

