# To key in the horizontal alignment

Use the steps below to key in the horizontal alignment for the selected road. To define the horizontal alignment by selecting items from the map, see To define the road from selected items in the map.

1. Tap Horizontal alignment.

2. Tap Add.

   The Element field is set to Start point.

3. To define the start point:
   1. Enter the Start station.

   2. In the Method field, select either:

      - Key in coordinates and then enter values in the Start north and Start east fields.

      - Select point and then select a point in the Point name field.

        The Start north and Start east fields will update with the values for the entered point.

        To edit the Start north and Start east values when they have been derived from a point, change the method to Key in coordinates.

   3. Tap Store.
4. To add elements to the alignment:

   1. Select the Element type and fill out the remaining fields.

      For more information, refer to the topic for the selected entry method.

   2. Tap Store.

   3. Continue adding elements as required.

      Each element is added after the previous element.

   4. When you are done, tap Close.

   To edit an element or to insert an element further up the list, you must first tap Close to close the Add element screen. You can then select the element to edit in the list and then tap Edit. To insert an element, tap the element that will come after the new element and then tap Insert.

5. Tap Accept.
6. Enter the other road components, or tap Store to store the road definition.