What’s on the Stopping Sight Distance poster
The rule, 3 worked examples, and the mistake everyone makes.
- Stopping distance is what a driver covers while reacting plus what the brakes then need.
- SSD = 0.278Vt + V²/(254(f ± g))
- V 80, t 2.5 s, f 0.35 = SSD ≈ 128 m
- Four per cent downgrade = Braking distance grows
- Wet surface = f falls, SSD rises
- Common mistake: Dropping the gradient term → Subtract downgrade, add upgrade
Educational reference. Reaction time and friction values are fixed by the governing design standard, not chosen freely.
Questions about the Stopping Sight Distance poster
- What’s on the Stopping Sight Distance poster?
- The rule, 3 worked examples, and the mistake everyone makes. Stopping distance is what a driver covers while reacting plus what the brakes then need.; SSD = 0.278Vt + V²/(254(f ± g)); V 80, t 2.5 s, f 0.35 = SSD ≈ 128 m; Four per cent downgrade = Braking distance grows; Wet surface = f falls, SSD rises; Common mistake: Dropping the gradient term → Subtract downgrade, add upgrade. Educational reference. Reaction time and friction values are fixed by the governing design standard, not chosen freely.
- Who is the Stopping Sight Distance poster for?
- Stopping Sight Distance belongs to the Civil Engineering section rather than to a school year, because engineering is not something one grade owns. Anyone learning transportation can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the Stopping Sight Distance poster?
- Checking a sight line past a bend, a crest or a parked vehicle. A wall chart earns its place by being glanceable from where the work is happening, so Stopping Sight Distance belongs on the wall where that engineering work actually happens, within glancing distance, rather than filed away.
- What other posters go with Stopping Sight Distance?
- CBR & Subgrade, Road Cross Section and Mass Haul sit alongside Stopping Sight Distance in the Civil Engineering section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.CBR & SubgradeRoad Cross SectionMass Haul
- Is the Stopping Sight Distance poster free to download and print?
- Yes. Stopping Sight Distance downloads as a free PDF with no account, no email and no watermark, like everything else in the Civil Engineering section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the Stopping Sight Distance poster print at?
- Stopping Sight Distance is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Stopping Sight Distance loses nothing.Printing guide
Related posters
Charts that sit alongside Stopping Sight Distance on the same wall.
Browse every Civil Engineering poster, or start from the full catalogue.