For the following contour plot.

What is the driving direction on each side? Explain how can you tell only from the

contour plot.

Identify the different congested areas with numbers.

For each of these congested areas, estimate the temporal and spatial extend of

congestion.

Congestion on I$-695$ between MD$-140/$Reisterstown Rd$/$Exit$20$ and Providence Rd$/$Exit $28$

Data shown is averaged on Mar $15,2012$ at $15$ minute intervals.