2891-25 Final Ordinance WO SJ Tier_3_Complete and Green Streets Model.pdf

1. Street tree trenches/boxes: utilize soil, gravel, and plants to infiltrate and filter stormwater runoff from impervious surfaces 2. Bioswales: shallow channels that convey, slow down, and infiltrate stormwater runoff. 3. Vegetated curb bump outs: a vegetated curb extension that protrudes into the street either mid-block or at an intersection, creating a new curb some distance from the existing curb. 4. Permeable pavement: a stormwater drainage system that allows rainwater and runoff to move through the pavement’s surface to a storage layer below, with water eventually seeping into underlying soil. Types of permeable pavement include pervious concrete, porous asphalt, interlocking concrete pavers, and grid pavers. Green Stormwater Infrastructure: An approach to managing stormwater by infiltrating it in the ground where it is generated using vegetation or porous surfaces, or by capturing it for later reuse. Infiltration is when water falls to the earth as precipitation and seeps into the soil. Priority Communities: The term Priority Communities refers to categories of underserved and adversely impacted populations. There is a wide range of definitions used to quantify and locate underserved populations developed by agencies and organizations dedicated to social equity by law or mission. Each municipality should evaluate who and where there are concentrations of underserved or marginalized populations based on available data. Below are some of the categories to consider when defining Priority Communities: 1.Minority Concentrations 2.Low-Income Concentrations 3.Other Indicators of Underserved and Adversely Impacted Populations: a. Female Head of Household with Children b. Persons with Limited English Proficiency c. Carless Households d. Elderly Populations/Children e. Persons with Disabilities f. Hispanic Populations g. Other Ethnic Minorities h. Families in Poverty with Children Traffic Calming: The combination of mainly physical measures that reduce the negative effects of motor vehicle use, alter driver behavior, and improve conditions for non-motorized street users. Traffic calming objectives include: 1. Achieving slow speeds for motor vehicles 2. Reducing collision frequency and severity 3. Increasing the safety and the perception of safety for non-motorized users of the street(s)