Chapter 12.09 TRANSPORTATION FACILITIES This chapter is included in your selections. Sections: 12.09.010 General provisions. Article I. Streets12.09.021 Street classification and plan.12.09.022 Principal arterials.12.09.023 Minor arterials.12.09.024 Collector arterials.12.09.025 Local access street system.12.09.026 Minimum street standards.12.09.027 Roadway level of service.12.09.028 Traffic studies. Article II. Road Improvements12.09.031 Street frontage improvements.12.09.032 Other road improvement requirements. Article III. Private Streets12.09.061 Certification.12.09.062 Completion.12.09.063 Maintenance.12.09.064 Conditions of recording. Article IV. Other Provisions12.09.070 Traffic control.12.09.080 Street trees.12.09.090 Sidewalks, walkways, paths, and trails.