Thank you for those questions.
Under the regulations, there's what I like to call a menu approach. Once the assessed level of risk of a crossing is determined, there are multiple different options for a railway or landowner to achieve compliance and reduce risk to the tolerable level we want to see it at.
In many cases, it can be achieved by vegetation clearing and adjusting the road approach so it's a little less acute to the railway to improve blind spots. In some cases, the crossing can be moved, let's say, further down the field or to some other spot where sightlines are improved. There are also the warning systems, which tend to be the most costly options.