Fill in the Blanks (Reading & Writing)

City noise maps use sensor networks and traffic data to —visualisevisualvisualisationvisualised sound levels across an urban area at different times of day. Planners rely on these maps to identify streets where noise regularly —exceedsexceedexceedingexceeded recommended health limits. The resulting data can then —informinformedinforminginformation decisions about speed restrictions, road surfacing and barrier placement.