On this day, April 25, 1946, the wreck of the Exposition Flyer occurred.

[mahatmakanejeeves]

I note it over the years.

Thu Apr 25, 2019: Today is the 73rd Anniversary of the Wreck of the Exposition Flyer.

Tue Apr 25, 2017: It's the 71st Anniversary of the Wreck of the Exposition Flyer.

Sat Apr 25, 2015: The wreck of the Exposition Flyer, April 25, 1946

This is of note, because it caused the Interstate Commerce Commission to institute new regulations regarding train speeds and signaling systems.

Naperville train disaster

The Naperville train disaster occurred April 25, 1946, on the Chicago, Burlington and Quincy Railroad at Loomis Street in Naperville, Illinois, when the railroad's Exposition Flyer rammed into the Advance Flyer, which had made an unscheduled stop to check its running gear. The Exposition Flyer had been coming through on the same track at 80 miles per hour (130 km/h). 45 people died, and some 125 were injured.
....

Long-term results

This crash is a major reason why most passenger trains in the United States have a speed limit of 79 mph (127 km/h). The CB&Q, Milwaukee Road, and Illinois Central were among railroads in the region running passenger trains at up to and above 100 miles per hour (160 km/h) in the 1930s and 1940s. The Interstate Commerce Commission ruled in 1951 that trains traveling 80 mph or more must have "an automatic cab signal, automatic train stop or automatic train control system", expensive technology that was implemented on some lines in the region, but has since been mostly removed.

The Burlington increased headway on the two trains from 2 minutes to 15 minutes in May, and added a signal position, flashing yellow, for a total of 4 positions. They continued to haul mixed heavyweight/lightweight trains, but at the time they were already rapidly replacing heavyweight cars with stainless steel lightweight “Zephyr” type cars. All units in both trains would return to service except the Advance Flyer's last coach and the dining car, both were total losses.

Following this disaster, advancements in train speed in the United States essentially halted. However, select Amtrak passenger trains run at up to 150 mph (240 km/h) as of 2013.

External links

Photos of the Day: Naperville, Illinois Rail Disaster (1946)
https://web.archive.org/web/20100103195411/http://drx.typepad.com/psychotherapyblog/2008/04/photos-of-the-5.html

Scroll down to see the pictures. You'll think you're at the wrong site at first.



The Great Naperville Train Disaster

The following article from 2011 is strangely written and full of odd claims. It does, however, link to many photographs of the event.

The 65th Anniversary Of The Naperville Train Crash

The 65th Anniversary Of The Naperville Train Crash
By Barek Halfhand

April 25th 2011 at 1:03 pm marked the 65th anniversary of one of the worst railroad accidents in American history leaving 43 dead and 125 injured …I arrived in far west suburban Naperville at
12:35pm…

{snip}

The transformation of steam to diesel powered locomotives transpiring nationwide by way of Smoke Abatement , air pollution and Clean Air legislation that started as early as the late 20’s had a dramatic effect on all modes of personal and logistical transportation …these new environmental regulatory statutes radically changed the air quality and general tidiness of the Union Station depot loading platforms …anyone that has had any experience related to a coal knows that with it comes a fine layer of soot regardless of efforts to contain, manage or remove it…the passengers that filed in and out of the trains as either daily commuters or transient travelers alike probably welcomed this change …

{snip}

At some point crew members aboard the Advance Flyer observed an unidentified object ejected from the underside of one of the carriages as they approached the Naperville city limits and the engineer was forced to make an unscheduled stop at the Loomis Street station to check for damages and conduct an impromptu safety inspection…the engineer of Exposition Flyer speeding along a disputed excessive speed speed 80 plus miles an hour did not see the red warning light and by the time he did visually identify the impeded train and frenzied flag waver ahead, the indefatigable leviathan juggernaut slammed into the last car of the Advance Flyer with such velocity, impact and unimaginable force that it literally split the last car in two up the middle…what followed was a scene of confusion, shock, devastation, carnage, twisted metal wreckage and the tumultuous caterwauling of pain and cries for help …

{snip}

"The indefatigable leviathan juggernaut"? Whatever. "Clean air legislation" might have brought about the electrification of the New York Central, the Pennsylvania, and the New Haven Railroads into New York City, but it most certainly was not a major factor in the railroads' change from steam to diesel.

Here is the Interstate Commerce Commission accident report:

CHICAGO, BURLINGTON & QUINCY RAILROAD COMPANY REPORT IN RE ACCIDENT AT NAPERVILLE, ILL., ON APRIL 26, 1946