For a glossary of terms, refer to Appendix B of the current version of DM-1X: https://www.pa.gov/content/dam/copapwp-pagov/en/penndot/documents/public/pubsforms/publications/pub-10/pub-10x/november%202025%20change%20no.%207.pdf

For a glossary of terms, refer to Appendix B of the current version of DM-1X: https://www.pa.gov/content/dam/copapwp-pagov/en/penndot/documents/public/pubsforms/publications/pub-10/pub-10x/november%202025%20change%20no.%207.pdf