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- Railroad Signal Light near the Diann Tower, Detroit, Toledo & Ironton Railroad, February 1927 - Traffic on many railroads is controlled by an automatic block signaling system. A railroad line is sectioned into blocks, and an electrical circuit in the track detects whether a train is in a given block. The circuit then operates differently colored signal lights, like these, that instruct an engineer how to proceed -- similar to an automobile traffic light.
- February 08, 1927
- Collections - Artifact
Railroad Signal Light near the Diann Tower, Detroit, Toledo & Ironton Railroad, February 1927
Traffic on many railroads is controlled by an automatic block signaling system. A railroad line is sectioned into blocks, and an electrical circuit in the track detects whether a train is in a given block. The circuit then operates differently colored signal lights, like these, that instruct an engineer how to proceed -- similar to an automobile traffic light.
- Interior of Interlocking Tower on the D.T. & I. Railroad, Detroit, Michigan, July 1926 - The operator stationed in this Detroit, Toledo & Ironton Railroad building would have kept busy. This interlocking tower protected the crossing of a DT&I branch with the Detroit United Railway's streetcar line on Jefferson Avenue. The tower operator likely was responsible for activating the railroad crossing gates as well.
- July 02, 1926
- Collections - Artifact
Interior of Interlocking Tower on the D.T. & I. Railroad, Detroit, Michigan, July 1926
The operator stationed in this Detroit, Toledo & Ironton Railroad building would have kept busy. This interlocking tower protected the crossing of a DT&I branch with the Detroit United Railway's streetcar line on Jefferson Avenue. The tower operator likely was responsible for activating the railroad crossing gates as well.
- Detroit, Toledo & Ironton Railroad Signal Tower at Diann, Michigan, February 1927 - Diann interlocking tower took its name from the crossing of the Detroit, Toledo & Ironton Railroad with the Ann Arbor Railroad. The tower controlled the crossing itself and the connecting tracks between the two railroads. Each track switch was mechanically interlocked with the others, preventing an operator from aligning switches in a way that might cause a collision.
- February 08, 1927
- Collections - Artifact
Detroit, Toledo & Ironton Railroad Signal Tower at Diann, Michigan, February 1927
Diann interlocking tower took its name from the crossing of the Detroit, Toledo & Ironton Railroad with the Ann Arbor Railroad. The tower controlled the crossing itself and the connecting tracks between the two railroads. Each track switch was mechanically interlocked with the others, preventing an operator from aligning switches in a way that might cause a collision.
- Interlocking Tower on the D.T. & I. Railroad, Detroit, Michigan, July 1926 - The operator stationed in this Detroit, Toledo & Ironton Railroad building would have kept busy. This interlocking tower protected the crossing of a DT&I branch with the Detroit United Railway's streetcar line on Jefferson Avenue. The tower operator likely was responsible for activating the railroad crossing gates as well.
- July 02, 1926
- Collections - Artifact
Interlocking Tower on the D.T. & I. Railroad, Detroit, Michigan, July 1926
The operator stationed in this Detroit, Toledo & Ironton Railroad building would have kept busy. This interlocking tower protected the crossing of a DT&I branch with the Detroit United Railway's streetcar line on Jefferson Avenue. The tower operator likely was responsible for activating the railroad crossing gates as well.
- Detroit, Toledo & Ironton Railroad Signal Tower at Diann, Michigan, February 1927 - Diann interlocking tower took its name from the crossing of the Detroit, Toledo & Ironton Railroad with the Ann Arbor Railroad. The tower controlled the crossing itself and the connecting tracks between the two railroads. Each track switch was mechanically interlocked with the others, preventing an operator from aligning switches in a way that might cause a collision.
- February 08, 1927
- Collections - Artifact
Detroit, Toledo & Ironton Railroad Signal Tower at Diann, Michigan, February 1927
Diann interlocking tower took its name from the crossing of the Detroit, Toledo & Ironton Railroad with the Ann Arbor Railroad. The tower controlled the crossing itself and the connecting tracks between the two railroads. Each track switch was mechanically interlocked with the others, preventing an operator from aligning switches in a way that might cause a collision.