How 'Positive Train Control' Works

Tom Foreman explores whether PTC technology could have prevented the Amtrak derailment.

CNN Money
May 15, 2015
Latest in Operations
Accounting for Manufacturing Companies
Sponsored
Accounting for Manufacturing Companies
August 7, 2025
Hitachi booth at a trade show.
Hitachi Energy to Expand Manufacturing Operations in Tennessee
August 21, 2025
B2b Manufacturing Buyer Journey Study Cover
High-Value Manufacturing Purchases Undergoing Rapid Transformation
August 20, 2025
Hydro Graph Clean Power Inc
HydroGraph Expands U.S. Operations with New Austin Headquarters
August 20, 2025
Related Stories
Mnet 143951 Georgiapacificgraphiclead
Operations
Georgia-Pacific Professional and CloudClean Collaborate to Improve Hand Hygiene in Foodservice, Food Processing Industries
Mnet 143924 Jenisicecreamlead 2
Operations
Jeni's Resumes Ice-Cream Making After Cleaning Since Recall
Mnet 143933 Milk Picture Lead 2
Operations
Study: California Dairy Industry Contributes $21 Billion To State's Economy, Stimulates Ripple Effect Of $65 Billion
Accounting for Manufacturing Companies
Sponsor Content
Accounting for Manufacturing Companies
More in Operations
Accounting for Manufacturing Companies
Sponsored
Accounting for Manufacturing Companies
Is your manufacturing or distribution business in need of financial guidance? Our top-50 CPA firm specializes in audit, tax, and strategic consulting to help businesses like yours streamline operations and maximize profitability.
August 7, 2025
Hitachi booth at a trade show.
Operations
Hitachi Energy to Expand Manufacturing Operations in Tennessee
The company expects the expansion to create 100 jobs.
August 21, 2025
B2b Manufacturing Buyer Journey Study Cover
Operations
High-Value Manufacturing Purchases Undergoing Rapid Transformation
The hidden dynamics changing manufacturers' buying decisions.
August 20, 2025
Hydro Graph Clean Power Inc
Operations
HydroGraph Expands U.S. Operations with New Austin Headquarters
The site will serve as a central hub for graphene production and commercialization in the U.S.
August 20, 2025
Lowe's store in Philadelphia, Nov. 17, 2021.
Operations
Lowe's to Buy Foundation Building Materials in $8.8B Deal
The home improvement retailer is intensifying its focus on professional builders.
August 20, 2025
Screenshot 2025 08 19 105226
Operations
Campbell's Announces Collaboration with Pabst Blue Ribbon
The companies launched two new varieties of Chunky soup.
August 19, 2025
Philips ultrasound system at work.
Operations
Philips Announces $150 Million U.S. Manufacturing, Expansion Investment
These investments come on top of Philips’ annual $900 million R&D investment.
August 19, 2025
I Stock 465902026
Operations
BioMADE Announces $40M Iowa Biomanufacturing Plant
The facility will join other complexes in Minnesota and California.
August 19, 2025
Grand opening of the new Schutz facility in Kenosha.
Operations
Schütz Container System Plant Opens in Wisconsin
The $166 million project is expected to create 185 jobs.
August 19, 2025
Military personnel firing the Stinger missile.
Operations
RTX's Raytheon Signs Deal with Diehl Defence for Stinger Missile Co-Production
Production in Europe will support increased global capacity.
August 19, 2025
Rocket engine in transit.
Operations
X-Bow Systems, U.S. Army Announce $13.9 Million Joint Investment for Next-Generation Rocket Motor
Investment aims to boost production of guided multiple launch rocket system (GMLRS) components.
August 19, 2025
Vehicles drive along Mitchaw Road past Pacesetter Park Thursday, Aug. 7, 2025, in Sylvania Township, Ohio.
Operations
States Rethink a Long-Held Practice of Setting Speed Limits Based On How Fast Drivers Travel
States seek to let local engineers decide, rather than the historic 85% rule.
August 19, 2025
An Intel sign is shown at the chipmaker's global headquarters in Santa Clara, Calif. on Friday, Aug. 8, 2025.
Operations
Japan's SoftBank to Take $2 Billion Stake In Computer Chip Maker Intel
SoftBank has stepped up investing in the U.S. since Trump returned to the White House.
August 19, 2025
Electrical power lines string across the landscape near downtown Sunday, Aug. 11, 2024, in Nashville, Tenn.
Operations
Utility to Buy Power From Advanced Nuclear Plant to Fuel Tennessee, Alabama Google Data Centers
The agreement will deliver up to 50 megawatts of energy to the federal utility's grid.
August 19, 2025
Saab automotive logo
Operations
Saab Acquires Swedish Company Deform
Saab’s takeover continues strong ownership for Deform and long-term stability for its operations.
August 18, 2025