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$$\begin{tikzpicture}$$
$$\draw (0,0) -- (2,0) -- (2,1) -- cycle;$$
$$\draw (1,0) -- (1,0.5) -- (1.5,0.5) -- (1.5,0);$$
$$\node at (1.25,0.25) {person};$$
$$\node at (1,0.75) {escalator};$$
$$\node at (0.5,0) {first floor};$$
$$\node at (2.5,1) {second floor};$$
$$\node at (1.5,0.25) {30°};$$
$$\node at (1,0.25) {25 ft};$$
$$\end{tikzpicture}$$