 | Frank Russell Firth - 1880 - 536 pages
...intersection. A vertical curve rarely need extend more than 100 feet each way from that point. Fig. 92. FIG. 92. Let AB, BC, be two grades in profile, intersecting...and C be the adjacent stations. It is required to joia the grades by a vertical curve, extending from A to C. Suppose a chord drawn from A to O; —... | |
 | Austin Thomas Byrne - Pavements - 1892 - 736 pages
...vertical curve rarely need extend more than 200 feet each way from that point (Fig. 182). Let AB, EC, be two grades in profile, intersecting at station...a vertical curve extending from A to C. Suppose a FIG. 182. chord drawn from A to C. The elevation of the middle point of the chord will be a mean of... | |
 | Austin Thomas Byrne - Roads - 1906 - 96 pages
...of intersection. A. vertical curve rarely need extend more than 200 feet each way from that point. Let AB, BC, be two grades in profile, intersecting...grades by a vertical curve extending from A to C. Imagine a chord drawn from A to C. The elevation of the middle point of the chord will be a mean of... | |
 | Austin Thomas Byrne, Alfred Edward Phillips - Pavements - 1907 - 152 pages
...of intersection. A vertical curve rarely need 'extend more than 200 feet each way from that point. Let AB, BC, be two grades in profile, intersecting...the adjacent stations. It is required to join the Fig. 8. grades by a vertical curve extending from A to 0. Imagine a chord drawn from A to C. The elevation... | |
 | American School of Correspondence - Civil engineering - 1908 - 522 pages
...intersection. A vertical curve rarely need extend more than 200 feet each way from that point. L294 _ 1 AB, BC, be two grades in profile, intersecting at...grades by a vertical curve extending from A to C. Imagine a chord drawn from A to C. The elevation of the middle point of the chord will be a mean of... | |
 | American School (Lansing, Ill.) - Pavements - 1916 - 126 pages
...intersection. A vertical curve rarely need extend more than 200 feet each way from that point. Let AB and BC be two grades in profile intersecting at station...grades by a vertical curve extending from A to C. Imagine a chord drawn from A to C. The elevation of the middle point of the chord will be a mean of... | |
 | Civil engineering - 1920 - 472 pages
...intersection. A vertical curve rarely need extend more than 200 feet each way from that point. Let AB and BC be two grades in profile intersecting at station...grades by a vertical curve extending from A to C. Imagine a chord drawn from A to C. The elevation of the middle point of the chord will be a mean of... | |
 | American Railway Engineering Association - Railroads - 1904 - 892 pages
...so nearly approximates this condition that the following formula is recommended for practical use: A to C. The elevation of the middle point of the chord will be mean of the elevations of. grade at A and C. One-half of the difference between 77 78 79 this and the... | |
| |
Fig. 8, thus slightly changing the grade at and near the point of intersection. A vertical curve rarely need extend more than 200 feet each way from that point. 