This paper analyses the static and dynamic behavior of the railroad track model in laboratory. Measurements of stresses and strains on a large-scale railroad track apparatus were studied. The model includes: compacted soil, ...

This paper analyses the static and dynamic behavior of the railroad track model in laboratory. Measurements of stresses and strains on a large-scale railroad track apparatus were studied. The model includes: compacted soil, ...

Photo of a railroad at the Pitch Lake, where blue collar workers wait to load railroad carts which transport pitch. Also included on the postcard is a hand-written correspondence and a Brasil postage stamp.

Photo of railroad cart fully loaded with pitch and ready to be transported.

The foreground of this vintage photograph of an oilfield has what looks like train tracks. There is an electricity post in front of two oil derricks at mid-ground and a few sheds and trees in the background.

The postcard shows the Port of Spain harbour and South Quay.

The postcard shows the Port of Spain harbour and South Quay.

The postcard shows the Port of Spain harbour as well as the area known as South Quay which seems to be under construction.

The postcard shows the Port of Spain harbour and South Quay.