Let this drawing define its symbols

A familiar symbol can be misleading if you skip the legend. The same line style can have different meanings on different sheets. Open Banksia A one zero one when you can view it. Find D B in the legend: distribution board. D P means drain pit. The dashed lines are indicative services, and the notes say their status is unconfirmed. A mark on paper does not establish that a service is isolated or safe to disturb. Now move to S two zero one. Its dashed line convention includes overhead or bracing information. Use that sheet's legend. Find the A to A section reference and follow it to A three zero one. Pause and trace the route yourself, checking the project identity and revision. Explain what each sheet adds. When a referenced sheet is missing, record the missing reference and seek it through the project process. Do not fill the gap with a drawing from another job.