I just read a very detailed explanation for why a driver might not react in time to avoid riding under the side of a semi-trailer — one without a side guard I might add. Well, that is all very interesting and we might learn something useful from it.

But, why on earth would we rely on driver behavior (especially in such an unexpected scenario) when the installation of a side guard could so easily save the driver’s life?!

Of course, taking a comprehensive approach to safety makes the most sense –one which makes other factors important as well, including:

• Visibility and conspicuity.
• Adequate parking for trucks.
• Making it illegal for trucks to make U-turns.