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Presentation-Setting Speed Limits-10.11.2023 Setting Speed Limits Impacts of AB 43 / AB 1938 Transportation Division COPE RTINO California Manual for Setting Speed Limits • Speed limits establish a reasonable and safe operating speed for a specific section of roadway 2020 • Established by an Engineering and Traffic Survey (E&TS), California Manual for Setting by considering the following: Speed Limits • Prevailing speeds (85th percentile speed) SPEED LIMIT • Collision History 55 • Highway, traffic, and roadside conditions not - ,, �ENF•- f readily apparent to the driver. 85th percentile Speed -the speed at or below which 85% of the traffic is moving Engineering and Traffic Surveys (E&TS) "In order for the court systems and the public to accept and respect the responsible public agencies' posting and enforcement of posted speed limits, an E&TS must incorporate sound, repeatable methods conforming to the CVC and engineering principles." • An E&TS is valid for 5 years - CVC Section 40802 • Under special conditions, an E&TS may be valid for seven or ten years. • Existing E&TS may need to be reassessed before the renewal period is expired • Physical changes to the roadway, such as increasing or decreasing the number of travel lanes, may impact the 85th percentile speed • Law enforcement agencies and courts are accustomed to seeing surveys and it may be difficult to defend a speed violation citation without one AB43 & AB 1938 "The purpose of AB 43 and AB 1938 is to provide greater flexibility in setting and reducing speed limits in California" • Assembly Bill 43 - Traffic Safety • Includes 16 specific provisions that revised the CVC to grant agencies greater flexibility in setting speed limits, with additional flexibility for local agencies • 14 of 16 provisions applies to local authorities • Assembly Bill 1938 - Traffic Safety - Speed Limit • Additional clarifications to AB43 Provisions and its intentions Provisions in AB 43 and AB 1938 # Section# 5ubsectio Description 1 627 c2 Extend the considerations for ped and bike safety to increase consideration for children,seniors,persons with * Does not apply 2 22352 b1 Extend prima-facie speed limitto be applicable tostate highwaysalso to local agencies 3 22354 a Allow the lower limit of prima facie speed limit on the state highway to 20 or 15(25wasthe prior lower limit). 4 22358 a Allow the lower limit of prima-facie speed limit on the non-state highway to 25,20 or 15(30 was the prior lower limit) 5 40802 a2 Add the new senior zone and business activity districts to the list of prima fade listing within the citation 6 40802 b3 Add definition of senior zone as explicitly defined in the citation 7 40802 b4 Add definition of business activity district as explicitly defined in the citation 8 40802 c2Bi(II) Extends the maximum length of time an engineering and traffic survey may be used from 10 to 14years .m64O9417 r7Rii Add%point 7nne and hi icinecc activity dictrirt to the lict of nrima farie Iictinv within the ritatinn 30 22358.6 NA Rounding and ETS reductions from the 85th percentile for any speed survey 12 2235&7 NA Reduction provisions for Safety Corridor&High Concentrations of Ped/Bikes 13 22358.8 NA Reduction provisions for retaining current/prior speed limits 14 22358,9 NA Reduction provisions for Business Activity Districts ID ILL37L as rermmuiugycnangerrum nagman cu rragpersun 16 40802 b1 Deletion of"Califomia Road System Maps"reference Summary of Provisions: AB 43 and AB 1938 • CVC 22358.6(a)- Required to round speed limits to the nearest five miles per hour of the 85th % speed Table 2B-104(CA).Examples showing applicability of rounding and additional speed reduction on Local • 47.4 mph becomes 45 mph Agency's Roadways&Private Property Subjected to CVC If safety corridor or Rounding to If rounding to If rounding to adjacent to high 85th-Percentile nearest 5 mph nearest is up, nearest if down, concentration of • CVC 22358.6(b)- In cases in which speed limit Speed(mph) increment(CVC may round down may additionally bicyclists& needs to be rounded down to the nearest ,5mph, 22358.6(a)) lower by 5 mph pedestrians,may p (CVC 22358.6(c)) (CVC 22358.6(b)) additionally lower by the local authority may lower the speed limit an 5mph(CVC22358.7)* additional 5mph, if engineers determine the 47.5-50.0 50 45 No 40 roadway contains traffic conditions not readily 45.1-47.4 45 No 40 35 apparent to the driver 42.5-45.0 45 40 No 35 40.1-42.4 40 No 35 30 • CVC 22358.6(c)- In cases in which the speed limit `Note—CVC Sections 22358.7,22358.8&22358.9 are applicable to local agency roadways and private properties subjected to CVC,they are not applicable to the State Highway System.Refer to Section 2B.13 for more details. needs to be rounded up to the nearest 5mph of the 85th-percentile speed, the local authority may decide to instead round down the speed limit to the lower 5mph increment. If the speed limit is rounded down pursuant to this subdivision, the speed limit shall not be reduced any further pursuant to subdivision (b). Summary of Provisions: AB 43 and AB 1938 Table 2B•105(CA).Safety Corridor Definition Requirements Category Factors CVC Section 22358.7(a)(1) - "Safety Corridor" Definition Crash weighting can be developed using fatal and serious injury crash data and other factors to prioritize safety corridors.Suggested weighting factors are as follows: • Shall be defined as A roadway segment within an • Crash severity:Fatal Crashes,Serious Injury Crashes overall roadway network where the highest number of Crash Weighting Factors to • Mode:Pedestrian-bicycle related crashes,vehlclefother Develop One Serious/FatalgFactorst • Disadvantaged Community Status:MPOIRTPA or locally defined serious injury or fatality crashes occur. Injury Safety Corridor disadvantaged community status based on most current version of CalEnviroScreen • Vulnerable Populations:Seniors(age 65 and older)and Youth(under • One or more of the required crash weighting factors age 15)based on the American Community Survey • School proximity(within 0.25 miles)based on the California School listed shall be used to prioritize the locations of fatal and Campus Database serious injury crashes in developing the "Safety Corridor" Each roadway segment block can be converted into—0.25 mile overlapping "corridor"segments to create a consistent unit of measurement and asses the Crash Density concentration of linear patterns of injuries within a define distance.The highest • Shall represent a prioritized subset of the overall scoring(i.e.most fatal and serious injury crashes per mile)"corridor"segments roadway network within an authority's responsibilities within a street needs to be identified and an appropriate threshold set to determine safety corridor eligibility. and shall not exceed one-fifth of the overall roadway • network Maintenance The jurisdiction can establish a review and re-evaluation frequency for safety corridors.However,such frequency need not exceed seven years. Summary of Provisions: AB 43 and AB 1938 Table 2B•106(CA).Requirements to determine Land or Facility that Generates High Concentrations of Bicyclists or Pedestrians Category Generator CVC Section 22358.7(a)(2) - "Land or facility that generates high concentrations of bicyclists or pedestrians" Employment centers Presence of retail Parks,multi use trails,and recreational destnations • Shall be defined as The portion of the highway where Land Use Schools/universities Senior Centers one or more of any generators listed are present within Cultural areas,entertainment space areas,or areas of community significance 1320 feet Religious facilities Health/medical facilities Transit stops The top20% ofpedestrian / bicycle fatalities or serious Transit Factors Y Transit Oriented Developments/Transit Priority Areas injuries within a 3 to 5 year period shall be based on the Sidewalk presence Presence of Crosswalk presence geographic area within the jurisdiction of the Engineer Pedestrian/Bicyclist Bikeway presence performing the E&TS Infrastructure Nearby signalized intersections on four-way intersections Presence of micromobility devices such as bicycles or scooters Presence of vulnerable groups including children,seniors,persons with disabilities,users of personal assistive mobility devices,and the unhoused Demographic Factors MPo/RTPA or locally defined disadvantaged community status Presence of students(all levels) Local Data Need identified in a safety analysis such as a road safety audit or formalized planning document such as a local road safety plan Examples of AB 43 and AB 1938 Table 2B-104(CA). Examples showing applicability of rounding and additional speed reduction on Local Agency's Roadways & Private Property Subjected to CVC If safety corridor or Rounding to If rounding to If rounding to adjacent to high 85th-Percentile nearest 5 mph nearest is up, nearest if down, concentration of Speed (mph) increment (CVC may round down may additionally bicyclists & 22358.6(a)) (CVC 22358.6(c)) lower by 5 mph pedestrians, may (CVC 22358.6(b)) additionally lower by 5 mph (CVC 22358.7)* 47.5-50.0 50 45 No 40 45.1-47.4 45 No 40 35 42.5-45.0 45 40 No 35 40.1-42.4 40 No 35 30 * Note — CVC Sections 22358.7, 22358.8 & 22358.9 are applicable to local agency roadways and private properties subjected to CVC, they are not applicable to the State Highway System. Refer to Section 2B.13 for more details.