Two rush-hour disruptions at Hong Kong’s Lam Tin MTR station within 15 hours could be connected if they involved the same power supply circuit or exposed procedural shortcomings, an engineering expert has said, with a lawmaker urging the rail operator to offer more targeted compensation to affected passengers. The first disruption occurred on Tuesday evening, when an insulating rubber component in a track turnout caught fire, halting services for about an hour. The second struck on Wednesday...