#### Answer

Let\[p\]be the Westway Expressway is not in operation.
Let\[q\]be automobile traffic makes the East Side Highway look like a parking lot.
The form of the premises is
\[\begin{align}
& \underline{\begin{align}
& p\to q \\
& \\
& p \\
\end{align}}\ \ \ \ \ \underline{\begin{align}
& \text{If the Westway Expressway is not in operation, } \\
& \text{automobile traffic makes the East Side Highway look like a parking lot}\text{.} \\
& \text{On June 2, the Westway Expressway was completely shut down because of an overturned truck}\text{.} \\
\end{align}} \\
& \therefore ?\ \ \ \ \ \ \ \ \ \ \ \ \ \text{Therefore, } \\
\end{align}\]
The conclusion \[q\] is valid because it forms the direct reasoning of a valid argument when it follows the given premises. The conclusion can be translated as automobile traffic makes the East Side Highway look like a parking lot.
Therefore, the valid conclusion from the provided premises is automobile traffic makes the East Side Highway look like a parking lot.