In Maniac Magee, why did Maniac Magee avoid looking at the trestle?

Maniac Magee was born in Bridgeport and was not an orphan from birth. One fatal day, Maniac's parents were riding the P & W high-speed trolley back from the city when the drunken motorman took the high trestle over the Schuylkill River at sixty miles an hour. Tragically, the entire trolley crashed into the river, killing Maniac Magee's parents and the other passengers. As an orphan, Maniac never found a comfortable home and was continually running from town to town. Whenever he would cross the bridge over the Schuylkill, he would purposely turn his eyes away from the nearby P & W trestle in an attempt to avoid replaying the painful memory of his parents' death. Maniac even refrains from saving Russell in chapter 44 when he climbs onto the trestle and cannot safely come down on his own. Overall, Maniac Magee purposely refrains from looking at the trestle because it reminds him of his parents' tragic death.