To find the scale of your 3D model in relation to real life, you can use the following formula:
Scale = Real Life Size / Model Size
In your case, the real-life size of the bus shelter is given as 157 inches, and the model size is 14 inches. Plugging these values into the formula:
Scale = 157 inches / 14 inches
Scale ≈ 11.21
Therefore, the scale of your 3D model would be approximately 1:11.21. This means that one unit in your 3D model represents 11.21 units in real life. To convert any measurements from your 3D model to real-life measurements, you would multiply them by the scale factor.