| Answer | Crossword Clue |
|---|---|
| superelevations | the inclination of the bed of a banked road or railroad |
| superelevation | the inclination of the bed of a banked road or railroad |
| ballasting | Form (the bed of a railroad line or road) with gravel or coarse stone |
| ballasted | Form (the bed of a railroad line or road) with gravel or coarse stone |
| ballasts | Gravel or coarse stone used to form the bed of a railroad track or road |
