A black and white technical diagram showing a winding road layout with various labels for points, chainages, radius, and angles on a grid background.

I can’t physically draw on your paper, but I can provide a visual layout guide that you can trace or copy. To get the 12 marks for a "well-annotated diagram," your sketch needs to show the relationship between the tangents (straight lines) and the curves. Sketch Layout Guide Imagine your page as a grid. Here is how the road "flows" based on the coordinates: 1. Point A to IP_1 (The First Straight): ◦ Start at the bottom left. Draw a straight line angled upwards and to the right (at about 60^\circ from vertical). ◦ Label the start A (Ch 0.000). ◦ Label a point 18mm (or units) in as HTP_1 (Ch 18.000). ◦ Continue the dotted line to the intersection point IP_1. 2. The First Curve (Right Turn): ◦ From HTP_1, draw a smooth arc curving to the right. ◦ Draw two radius lines meeting at a center point inside the turn. Label these R = 190\text{m}. ◦ Label the angle between the radius lines as \beta_1 = 37^\circ. ◦ The curve ends at HTP_2. 3. The Second Curve (Left Turn): ◦ After a very short straight (or immediately, as these curves nearly touch), the road curves to the left. ◦ From HTP_3, draw a smooth arc curving upwards and to the left. ◦ Draw the radius lines for this curve and label R = 190\text{m}. ◦ Label the deflection angle as \beta_2 = 47^\circ. ◦ Mark a point on this curve as B (Ch 250.000). 4. The Final Straight: ◦ The curve ends at HTP_4. ◦ Draw a final straight line (dotted) leading toward C. What to write on your drawing (Annotations): To satisfy the "well-annotated" Mehr sehen