north kings highway (va 241) intersection improvements study

County of Fairfax, Virginia

Department of Transportation

North Kings Highway (VA 241)Intersection Improvements Study

Final PublicComment Period

September 15, 2015through

November 15, 2015


Public Involvement / Citizen Feedback • Public involvement has been an important element of the process

o The Penn Daw Special Study Task Force helped identify community issues and evaluate changes to the Comprehensive Plan from 2010-2012

o Stakeholder meetings were held in early 2013 to discuss different transportation design alternatives

o May 2013 Community Meeting provided an opportunity for feedback as alternative concepts were developed

o June 2014 Community Meeting, followed by online voting, resulted in narrowing down the concepts (Options 8C & 8D selected for further analysis)

o December 2014 Community Meeting highlighted the operational functionality of Options 8C and 8D

o Final public comment period, September 15, 2015 to November 15, 2015http://www.fairfaxcounty.gov/fcdot/nkingshwy.htm

Department of Transportation 2

http://www.fairfaxcounty.gov/fcdot/nkingshwy.htm

http://www.fairfaxcounty.gov/fcdot/nkingshwy.htm



Purpose• Revisit Options 8C & 8D• Provide travel time comparison between no-build and build options• Present systemwide & corridor measures of effectiveness• Share VDOT guidance regarding additional traffic signal at School

Street • Determine the best solution for the study area


No-Build Alternative, Including Proffers• Improvements to be made through development proffers

(This is what would occur with NO ACTION on Options 8C or 8D)o New Traffic Signal at North Kings Highway and Poag Street (Insight)o Exclusive NB left turn lane on Kings Hwy at Poag St (Penn Daw Plaza)o Additional NB left turn lane on N Kings Hwy at Shields Ave (Insight)o Additional WB through lane on Shields Ave at N Kings Hwy (Grande)o Exclusive EB left turn lane on School Street at N Kings Hwy (Insight) o New Crosswalks on N Kings Hwy, Poag St and School St (Insight)

Note:Insight = The ShelbyGrande = Huntington Grande (Central Supermarket/Fast Eddie’s Site)



No-Build with Proffers


No-Build Including Proffers


Option 8C• Identifying Features

o Traffic Signal at North Kings Highway and Poag Street o Closure of Median at School Street (Right-in, Right-Out)o Southbound U-turn Lane at Poag Street and Northbound U-turn lane at

Jamaica Driveo No roundabouts



Option 8C



No-Build Option 8C

Segment Travel Time (Sec) Travel Time (Sec) Travel Time Savings (Sec)

No-Build AM Option 8C AM No-Build PM Option 8C PM AM PMfrom School Street

(Out-bound) School Street to

Jamaica Drive 65.2 100.3 148.5 106.2 35.1 -42.3

Comparison of Travel Time Between No-Build and Option 8C (Year 2020)

Travel Time savings of 42 seconds in PM, and Travel Time increase of 35 seconds in AM




No-Build AM Option 8C AM No-Build PM Option 8C PM AM PM

to School Street (In-Bound)

Poag Street to School Street 136.7 123.7 357.6 125.9 -13 -231.7

Shields Ave to School Street 62.6 65.2 141.1 77.7 2.6 -63.4

Comparison of Travel Time Between No-Build and Option 8C (Year 2020)

No-Build Option 8C

Poag Street to School Street Travel Time savings of 231 seconds in PM and 13 seconds in AM Shields Ave to School Street Travel Time savings of 63 seconds in PM, and increase of 3 seconds in AM


Option 8D• Identifying Features

o Roundabout at North Kings Highway and Poag Streeto Closure of Median at School Street (Right-in, Right-Out)o Northbound U-turn Lane at Jamaica Drive



Option 8D



No-Build Option 8D


No-Build AM Option 8D AM No-Build PM Option 8D PM AM PM

from School Street (Out-Bound)

School Street to Jamaica Drive 65.2 90.6 148.5 129.9 25.4 -18.6

Comparison of Travel Time Between No-Build and Option 8D (Year 2020)

Travel Time savings of 18 seconds in PM, and Travel Time increase of 25 seconds in AM




No-Build AM Option 8D AM No-Build PM Option 8D PM AM PM

to School Street (In–Bound)

Poag Street to School Street 136.7 119.5 357.6 120.5 -17.2 -237.1

Shields Ave to School Street 62.6 66.7 141.1 88.9 4.1 -52.2

Comparison of Travel Time Between No-Build and Option 8D (Year 2020)

No-Build Option 8D

Poag Street to School Street Travel Time savings of 237 seconds in PM and 17 seconds in AM Shields Ave to School Street Travel Time savings of 52 seconds in PM, and increase of 4 seconds in

AM



Additional Traffic Signal at School Street Under Options 8C & 8D

• Questions raised at prior meetings about potential for adding a traffic signal at North Kings Highway and School Street

• VDOT will not allow a traffic signal at North Kings Highway and School Street due to close proximity to adjacent signals

• Traffic signal at School Street under build options would likely worsen traffic operations along North Kings Highway, leading to further delay and congestion (travel times would presumably increase)

• Storage needed for heavy southbound left turning movement at Shields Avenue Intersection (dual lefts)


2020 Summary / Comparison

Factor / Option2020

No-Build

2020 No-Build with

Proffers

2020 Alt 8C

(No Roundabouts)

2020 Alt 8D

(Poag St Roundabout)

Cost (1) None Developer $4.75M $6.35M (4)

ROW Impact None Proffered Low (2)(3) Moderate (2)(3)

System-wide Average Delay Savings Per VehicleVs. No-Build w Proffers Peak Hour (seconds)

AM - - -21.3 -41.6

PM - - -99.1 -113.9

North Kings Highway Travel Time SavingsVs. No-Build w Proffers Peak Hour, Direction (seconds)

AM NB - - -99.4 -106.5

PM SB - - -381.1 -329.2

Pedestrian Safety, Walkability Low Moderate High Moderate

Vehicular Safety Low Low Moderate High


(1) Assumes VDOT Planning Level Cost Estimates Plus ROW & Business Impacts ($50/SF + $50,000/Parking Space)(2) Potentially significant impact to Parcel 002 (Zipps Dry Cleaners) (3) Potentially significant impact to Parcel 012 (Office Depot)(4) Does not factor potential total property takes. Cells highlighted in yellow indicate best results


Staff RecommendationOption 8C

• Safer traffic operations • Reduction in delay• Significant improvement in

travel time• Minimal impact on

neighboring properties• Cost effective• Safer pedestrian crossings• Improved walkability• Improved new look to area• Signage/way-finding


Option 8C


Questions?

ARPITA CHATTERJEEFairfax County Department of Transportation4050 Legato Road, Suite 400Fairfax, VA 22033

[email protected](703) 877-5600


mailto:[email protected]

north kings highway (va 241) intersection improvements study

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