title: SELECT Segment-IDs IF higher than average
body: <p>I have a table named as combination_table. First I need to find <strong>travel_time</strong> <code>average</code>. And with this average I need to <code>select</code> <strong>segmentids</strong> which are <strong>higher than the average</strong> that we calculate.
  Is it possible to write such a query?
  <a href="https://i.stack.imgur.com/utPda.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/utPda.png" alt="enter image description here" /></a></p>