Anne BYRNE and Jean Nole, Executrices of the Estate of Ann Alkins, Individually and on behalf of a class of all those similarly situated, Appellees, v. SOUTHEASTERN PENNSYLVANIA TRANSPORTATION AUTHORITY, Appellant; Jean PERSON, Administratrix of the Estate of Andrew Collins, Individually and on behalf of a class of all those similarly situated, Appellee, v. ALLSTATE INSURANCE COMPANY, Appellant; Albert COOPERSMITH, Individually and on behalf of a class of all those similarly situated, Appellee, v. COLONIAL PENN INSURANCE COMPANY, Appellant; Lucinda CONYERS, Individually and on behalf of a class of all those similarly situated, Appellee, v. STATE FARM MUTUAL AUTOMOBILE INSURANCE COMPANY, Appellant; Clayre ABRAMSON, Individually and on behalf of a class of all those similarly situated, Appellee, v. LIBERTY MUTUAL INSURANCE COMPANY, Appellant; Andrew COLLINS, Individually and on behalf of a class of all those similarly situated, Appellee, v. ALLSTATE INDEMNITY COMPANY, Appellant