We have sidewalks in our development that are cracking, sinking, etc. Some are being repaired, some are waiting. What is a better option for sidewalk material? Something more attractive that is, say, in pieces already so we don't have the continual rework and hazards. Are cobblestones, bricks, slate, etc. good materials to use ... ice, shifting, tripping problems? Does anyone know what the regulations are for curb height? Some of our curbs stick above the sidewalk and are tripping hazards. Someone told me they should be on the same plane as the walk (no vertical change). Thanks for any suggestions to improve our situation.