<p><br>
On Jun 26, 2012 5:47 AM, "John Sturdy" <<a href="mailto:jcg.sturdy@gmail.com">jcg.sturdy@gmail.com</a>> wrote:</p>
<p>> As far as I know, variable speed limits tend to be used in areas prone<br>
> to heavy congestion, so routing applications should probably assume<br>
> it's a slow road (at least during the daytime).</p>
<p>In the US, the most common variable speed limit scenario is a school zone. Rules for when the lower limit applies varies. Some are certain hours of the day and only on school days, others are year round whenever children are present, and others still are based on signal indication. </p>