Nearly a year after Central Avenue resident Ralph Viola first raised traffic safety concerns tied to the final phase of the state’s Causeway project in the borough, officials have taken steps to improve daily flow on roads it controls – but lingering problems point to how difficult it is to address concerns when key stretches remain outside local control.

“Safety is of the utmost importance since we are now once again in the busy summertime,” he told the council at its July 28 meeting, where he…