Vibro piling effects on harbour purpoise

# Introduction The Tender Document at hand contains information regarding this invitation to tender conducted in accordance with the European open procedure for vibro piling effects on harbour porpoise. # Reason for this invitation to tender In this tender Rijkswaterstaat asks for research to determine the effects of vibro piling on the harbour porpoise and to determine sound thresholds where different effects like PTS (Permanent Threshold Shift) - TTS (Temporary Threshold Shift) and disturbance occurs. These thresholds can then be used to calculate the impact of vibro piling on the harbour porpoise population in future Framework for Assessing Ecological and Cumulative Effects (KEC - in Dutch ‘Kader voor Ecologie en Cumulatie’). # General description of the WOZEP program In 2016 - the Ministry...