Work

Directional, Modulated Sirens for Improved Emergency Vehicle Signalling and Public Acoustic Safety

Year: 2025

Type: article

Abstract: This concept note outlines a proposed directional siren system for emergency vehicles, using front- and rear-mounted horns with artificial Doppler shifts and speed-responsive modulation. The aim is to improve localisation, reduce noise pollution, and enhance acoustic safety in urban environments. Drawing from psychoacoustics, bioacoustic strategies, and existing DSP technologies, the system provides spatial cues without increasing volume. The concept is offered as a public, non-commercial contribution to inform future design and regulatory discussions.

Source: Zenodo (CERN European Organization for Nuclear Research)

DOI: 10.5281/zenodo.15628566

Author: McGregor, Iain

Institution: Edinburgh Napier University

Language: English

Topic: Vehicle Noise and Vibration Control

Subfield: Automotive Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Sustainable cities and communities

Open Access status: green

OpenAlex ID: W6930664376

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