Pinal County Access Management Manual Final

Pinal County Access Management Manual Final

Project No. EV 14-043 Traffic Engineering On-Call

February, 2017

Pinal County Access Management Manual

Project No. ? EV 14-043 Traffic Engineering On-call February 24, 2017 Prepared for:

Prepared by:

Michael Baker

INTERNATIONAL

I' I N A I, ? C 0 U N T Y u?itlt .,,. "'PJ"1'l??if)

Table of Contents

1.0 Introduction ................................................................................................................................................. 1

2.0 Access Management Principles and Benefits .............................................................................................. 3

2.1 Principles of Access Management ........................................................................................................... 3

2.1.1 Provide a Specialized Roadway System ............................................................................................ 4

2.1.2 Promote Intersection Hierarchy ....................................................................................................... 4

2.1.3 Locate Signals to Favor Through Movements .................................................................................. 4

2.1.4 Preserv,e the Functional Area of Intersections and Interchanges .................................................... 4

2.1.5 Limit the Number of Conflict Points ................................................................................................. 5

2.1.6 2.1.7 2.1.8 2.1.9 2.1.10

Separate Conflict Areas..................................................................................................................... 5

Remove Turning Vehicles from Through Traffic Lanes.....................

.. ................ 5

Use of Non-traversable Medians on Major Roadways ................

.............. 5

Provide a Supporting Street Network............................................lfcl,,~,_:.. Provide Unified Access and Circulation Systems .........................

"''I'W~"' ................ 6

.. ............. 7

2.2 Benefits of Access Management.. ........................................................

2.2.1 2.2.2

Safety Benefits ................................................................................

Operational Benefits ........................................................................... ~~

.. .............. 7 .. ................ 7 .. ................... 9

2.2.3 Economic Benefits........................................................................................................................... 11

2.2.4 Land Use and Sustainability Benefits .............................................................................................. 12

3.0 Access Management Policies and Ordinances........................................................................................... 14

3.1 Arizona State Transportation Board Policy on Access Management .................................................... 14

3.2 Arizona Department of Transportation ................................................................................................. 14

3.3 Pinal County Comprehensive Plan 2009 ................................................................................................ 14

3.4 Pinal Regional Transportation Plan ........................................................................................................ 15

3.5 City of Casa Grande ................................................................................................................................ 15

3.6 Town of Florence.................................................................................................................................... 16

3. 7 City of Apache Junction .......................................................................................................................... 16

3.8 Town of Queen Creek............................................................................................................................. 17

4.0 Access Spacing Requirements.................................................................................................................... 19

4.1 Signalized Street Access Connections .................................................................................................... 19

4.2 Unsignalized Full Access Street Connections ......................................................................................... 20

4.3 Full and Partial Median Openings .......................................................................................................... 20

4.4 Access Connection Spacing Along Frontage/Service Roads................................................................... 21

4.5 Access Connection Spacing near Freeway/Parkway Interchanges ........................................................ 22

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February 2017

4.6 Alternative Intersection Applications .................................................................................................... 23 5.0 Design Standards Documentation ............................................................................................................. 25

5.1 Street Cross-Sections ............................................................................................................................. 25 5.1.1 Arizona Parkways/Parkways or RSR Parkways ............................................................................... 25 5.1.2 Frontage Roads ............................................................................................................................... 25

5.2 Sight Distance Requirements ................................................................................................................. 26 5.3 Turn Lanes (left-turn and right-turn) ..................................................................................................... 26 5.4 Driveway Locations ................................................................................................................................ 27

5.4.1 Driveway Spacing ............................................................................................................................ 27 5.4.2 Corner Clearance ............................................................................................................................ 27 5.5 Cross and Shared Access ........................................................................................................................ 28 5.6 Local/Frontage Access Lanes.................................................................................................................. 29 5.7 Driveway Curb Radius ............................................................................................................................ 29 5.8 Unsignalized Driveway Design ............................................................................................................... 29 5.9 Signalized Driveway Design.................................................................................................................... 29 5.10 Driveway Turning Movement Restrictions ............................................................................................ 29 5.11 Median Design........................................................................................................................................ 30 5.12 U-Turn Design......................................................................................................................................... 30 5.13 Truck Loading Areas ............................................................................................................................... 31 5.14 Pedestrian and Bicycle Facilities ............................................................................................................ 31 5.15 Transit Facilities...................................................................................................................................... 31 6.0 Implementation Methods.......................................................................................................................... 32 6.1 Zoning Strategies.................................................................................................................................... 32 6.2 Land Development Strategies ................................................................................................................ 33 6.3 Subdivision Regulations ......................................................................................................................... 33 6.4 Site Plan Review ..................................................................................................................................... 35 6.5 Traffic Impact Study Procedure.............................................................................................................. 37 6.6 Retrofit Procedure for Existing Land Uses and Corridors ...................................................................... 37 6.7 Access Variance Procedure .................................................................................................................... 37 7.0 Access Approval and Permit Process ......................................................................................................... 39 7.1 Access Permitting Process for all County Roads .................................................................................... 39 7.1.1 Incorporation of Access Management into Development Review Procedures ............................. 39 7.1.2 Incorporation of Access Management into Capital Improvement Plan Process............................ 44

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List of Figures

Figure 1 ? Mobility vs. Access in Functional Roadway System ............................................................................................... 3 Figure 2 ? Physical vs. Functional Area of an Intersection...................................................................................................... 5 Figure 3 ? Conflict Reduction through Access Management.................................................................................................. 6 Figure 4 ? Driveway Spacing and Corner Clearance ............................................................................................................. 28 Figure 5 - Access Permitting Process for all County Roadways ............................................................................................ 40

List of Tables

Table 1 ? Overview of Design and Access Standards by Roadway Classification ................................................................... 2 Table 2 ? Composite Crash Rate Indexes by Access Density .................................................................................................. 8 Table 3 ? Representative Crash Rates by Type of Median: Urban and Suburban Areas ........................................................ 8 Table 4 ? Representative Crash Rates by Type of Median: Rural Areas ................................................................................. 8 Table 5 ? Impact of Spacing to First Unsignalized Access Road and Signalized Intersection on Potential Crash Rate .......... 9 Table 6 ? Access Density and Free-Flow Speed .................................................................................................................... 10 Table 7 ? Percentage Increase in Travel Time as Signalized Density Increases .................................................................... 10 Table 8 ? Safety and Operational Benefits of Common Access Management Techniques .................................................. 11 Table 9 ? Effect of Average Speed Reduction on Market Area............................................................................................. 12 Table 10 ? Signalized Street Access Spacing* ....................................................................................................................... 20 Table 11 ? Unsignalized Street Access Spacing*................................................................................................................... 20 Table 12 ? Median Opening * ............................................................................................................................................... 21 Table 13 ? Frontage Road Access Spacing ............................................................................................................................ 22 Table 14 ? Minimum Spacing for Parkway Interchange with Major Cross Street ................................................................ 22 Table 15 ? Minimum Spacing for Parkway Interchange with Minor Cross Street ................................................................ 23 Table 16 ? Minimum Access Connection Spacing from Roundabouts ................................................................................. 24 Table 17 ? Design Standards by Roadway Classification ...................................................................................................... 26 Table 18 ? Design Controls for Minimum Median Openings................................................................................................ 30 Table 19 ? Minimum Median Opening ................................................................................................................................. 30 Table 20 ? Median Separator Widths to Permit U-Turns by Various Design Vehicles ......................................................... 31 Table 21 ? Median Width Recommendations per the Pinal County East-West Corridor Study........................................... 31 Table 22 - Summary of Development Review Processes ...................................................................................................... 41

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