Case Studies and Recommendations on Truck Route and Restriction Rules As requested by the project management team, guidelines and case studies are reviewed specifically on truck route and restriction rules, including criteria for adding/removing truck routes and designation of no-trucking routes. General Factors for Identifying and Designating Truck Routes State and local agencies can designate truck routes or prohibit all trucks, or trucks of particular size or weights, from using roads that are not part of the National Network. General factors for identifying and designating truck routes include: 30 • Truck Characteristics o Design vehicle dimensions and turning performance o Existing and anticipated usage by oversize/overweight vehicles • Roadway Network Characteristics o Functional classification o Network constraints o Position of roadway in transportation network and connectivity needs o Available alternative routes • Roadway facility characteristics o Lane Width o Shoulder width (e.g., TxDOT manual suggests 12-ft width for route utilized by large trucks.31 ) o Traffic-signal spacing
30 Design and Access Management Guidelines for Truck Routes: Planning and Design Guide (2020). Chapter 3 - Planning for Truck Routes and Other Related Considerations | Design and Access Management Guidelines for Truck Routes: Planning and Design Guide | The National Academies Press 31 TxDOT Roadway Design Manual (2022). https://ftp.txdot.gov/pub/txdot/crossroads/des/documents/roadway- and-hydraulics-design/rdw-may-2022.pdf
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