City-parish president candidates Joel Robideaux and Dee Stanley navigated questions on coal-generated power, the disruption an elevated interstate might cause in Lafayette and whether the city has too many traffic signals — all posed at a Thursday evening forum sponsored by the local chapter of the Sierra Club. In a campaign season where the candidates have often found themselves repeatedly addressing the same issues in the string of debates and forums leading up to the Oct. 24 election, Stanley and Robideaux covered some new ground at the environmental group’s forum at the Lafayette Public Library downtown. Robideaux, a longtime state...