11-15-11: ACCESS DIMENSIONS:

   A.   General: The dimensions of access connections are based on the peak hour trip generation volume of the use(s) to which access is to be provided. Peak hour trips may be allocated to one or more access connections. A qualified engineer shall provide the calculations for the peak hour trip generation and the assignment of generated trips to individual access connections. Single- family and two-family uses are not required to provide trip generation and assignment calculations by a qualified engineer.

   B.   Single-Family And Two-Family Residential Lots: Each single- family or two-family residential lot shall have no more than the maximum allowable width of access connection(s), as provided in table 11-15-11A, "Maximum Width Of Access Connections", of this section.

TABLE 11-15-11A: MAXIMUM WIDTH OF ACCESS CONNECTIONS

 

Use Classification	Standard (Maximum Width)	Maximum Access Width (Feet)
Single-family residential	1 car garage	12
	2 car garage	22
	3 car garage	30
Two-family residential	Two, 1-car garages	24
	Two, 2-car garages

 

   C.   Standard Dimensional Requirements: The access standards of table 11-15-11B, "Access Connection Standards", of this section, apply to developments in all districts other than single-family and two-family lots.

TABLE 11-15-11B: ACCESS CONNECTION STANDARDS

 

Access Type	Maximum Peak Hour Volume	Access Lanes And Lane Widths	Access Throat Length (Feet)	Return Radii By Street Functional Classification
				Principal Or Minor Arterial (Feet)	Collector (Feet)	Local (Feet)
Low volume	<50 trips	12 feet ingress; 12 feet egress	25	30	20	15
Mid volume	<200 trips	14 feet ingress; 4 foot median; Two 12-feet egress 1	50	30	20	15
High volume	<500 trips	14 feet ingress; 4 foot median; Two 12-feet egress1	100	35	30	20

 

Note:

1.   Only 1 egress is required if the access connection is configured for right in/right out only access.

   D.   Measurement Of Access Throat Length: The access throat length indicated in table 11-15-11B, "Access Connection Standards", of this section and illustrated by figure 11-15-11, "Measurement Of Access Spacing", of this section, is measured from the property line to the nearest edge of the first parking space or internal drive aisle.

FIGURE 11-15-11: MEASUREMENT OF ACCESS SPACING

   E.   Alternative Design: The city may require that access connections must be configured as right in/right out only access when the provision of left turn access would cause an unsafe condition or impede traffic flow on the public street. (Ord. 6124, 6-28-2010)