I've driven on some roads in Canada where the posted speed limit is 80 KPH or 48 MPH. After seeing a moose cow and her offspring coming right for us after coming around a curve, I understand why they have the limit. If I had been doing 70mph or 80mph like many Americands do, it may have been a really close call..
For you or toward you? If it's for you, I would think more speed would be in order.