A view of the scene Feb. 24, 2023, as the cleanup continues at the site of of a Norfolk Southern freight train derailment that happened on Feb. 3 in East Palestine, Ohio. Pennsylvania Gov. Josh Shapiro said Monday, March 6, 2023 that Norfolk Southern has pledged several million dollars to cover the cost of the response and recovery in Pennsylvania after last month’s derailment of a train carrying toxic chemicals just across the border in Ohio. (AP Photo/Matt Freed, file)

Norfolk Southern says it plans to improve the use of detectors along the tracks that are supposed to spot overheating bearings and other problems in the wake of a fiery Ohio derailment a month ago. The company said Monday it would evaluate the distance between such “hot bearing” detectors and anticipates adding about 200. The company said the first ones would be installed just west of East Palestine, where a Feb. 3 derailment forced half the town to evacuate as toxic chemicals burned. The company also pledged to install more acoustic bearing detectors and review all of its standards and practices.