For example , if the angle between the road and the uphill direction , projected onto the horizontal plane , is NUMBER@1 ° , then the steepest slope along the road will be NUMBER@2 % , which is NUMBER@3 % times the cosine of NUMBER@1 ° .

For example , if the angle between the road and the uphill direction , projected onto the horizontal plane , is NUMBER@1 ° , then the steepest slope along the road will be NUMBER@2 % which is NUMBER@3 % times the cosine of NUMBER@1 ° .
