Hours after a 28-car Norfolk Southern prepare derailed Saturday in Springfield, Ohio — the third incident for the freight railroad in simply over a month, together with the poisonous catastrophe in East Palestine, Ohio — inner emails present railroad officers making broad security changes for rail vehicles.

An inner Norfolk Southern electronic mail despatched Sunday and obtained by CNBC with a time stamp roughly 11 hours after the newest derailment indicated that Norfolk Southern was planning to cut back prepare size in an effort to forestall future incidents. Sources inform CNBC the e-mail was given to Norfolk Southern yard managers, who’re union employees answerable for stacking the trains.

A Norfolk Southern spokesman advised CNBC that steering has since been up to date and the prepare service is now mandating that any trains over 10,000 ft use distributed energy, that means the trains could be powered from a number of areas throughout the size of the prepare, not simply from the entrance. Distributed locomotives are wirelessly managed from the main locomotive in each energy and braking as wanted.

Norfolk Southern advised CNBC different railroad carriers at the moment have this security follow in place.

“At Norfolk Southern, the security of our crews and the communities we serve comes first,” Connor Spielmaker, spokesman for Norfolk Southern, wrote through electronic mail. “A part of enhancing security is constantly evaluating how we function our community, and now we have been inspecting speedy methods to maneuver that objective ahead. At the moment, as an interim step, we’re making certain all trains longer than 10,000 ft are operated with distributive energy. We are going to construct on this interim change to drive last insurance policies which might be acceptable for every phase of our railroad.”

Norfolk Southern advised CNBC it’s actively reviewing all security protocols to verify trains are working appropriately throughout the community.

Nonetheless, Jeremy Ferguson, president of SMART-Transportation Division, the nation’s largest rail union, stated his employees are being advised the railroad will restrict prepare size.

“I’ve seen Norfolk Southern paperwork to yardmasters [Monday] morning from the sector that’s telling us trains now not than 10,000 ft no matter distributed energy,” stated Ferguson. “The prepare that derailed on Saturday already had distributed energy, so their remark to CNBC doesn’t make sense. I’ll say it’s a good transfer by Norfolk Southern to take the best steps in lowering the prepare lengths, as a result of the trains are too lengthy.”

Prepare lengths have been a contentious problem for railroads and labor unions in negotiations. Railroads at the moment run on what’s referred to as precision scheduled railroading, or PSR, which has led to for much longer trains — so long as three miles.

Trains are stacked primarily based on the vacation spot, not weight distribution, with stacking of the primary vacation spot on the head of the prepare and in sequence till the final drop-off.

Railroads have redesigned prepare size in an effort to make use of fewer folks and to maneuver extra vehicles with fewer locomotives, lowering prices and producing increased income. However railroad unions and prospects have raised security and repair issues.

The derailment in Springfield marks the third derailment because the Feb. 3 East Palestine prepare catastrophe, by which hazardous supplies spilled.

On Feb. 16, a 135-car Norfolk Southern prepare touring from Detroit to Peru, Indiana, derailed roughly 14 miles exterior the yard in Romulus, Michigan. In keeping with the investigative report for that incident, the tonnage profile reveals heavy vehicles on the head of the prepare, within the center and within the rear, with empty vehicles scattered all through.

The derailment remains to be below investigation, however in line with one on-site investigation report, human error is more likely to be a big issue: An “engineer panicked and utilized heavy dynamic braking which resulted in an emergency brake utility and derailment.”

The Nationwide Transportation Security Board introduced it’s sending investigators to the Springfield website.