HomeMy WebLinkAboutKECHTER TOWNHOMES - FDP210002 - SUBMITTAL DOCUMENTS - ROUND 2 - TRAFFIC STUDY
This document, together with the concepts and recommendations presented herein, as an instrument of service, is intended only for the
specific purpose and client for which it was prepared. Reuse of and improper reliance on this document without written authorization from
Kellar Engineering LLC shall be without liability to Kellar Engineering LLC.
Kechter Townhomes
NW Quadrant of Kechter Road and Jupiter Drive, Fort Collins, CO
Traffic Impact Study
KE Job #2020-033
Prepared for:
Studio Architecture
1350 Pine Street, Suite 6
Boulder, CO 80302
Prepared by:
www.kellarengineering.com
970.219.1602 phone
March 25, 2021
Sean K. Kellar, PE, PTOE
Kechter Townhomes TIS -Page 1
TABLE OF CONTENTS
Page
1.0 Introduction 3
2.0 Existing Conditions and Roadway Network 3
2.1 Recent Traffic Volumes 3
3.0 Pedestrian Facilities 6
3.1 Zach Elementary School Traffic Coordination 6
4.0 Proposed Development 6
4.1 Trip Generation 6
4.2 Trip Distribution 7
4.3 Traffic Assignment 7
4.4 Short Range Total Peak Hour Traffic 7
5.0 Traffic Operation Analysis 7
5.1 Analysis Methodology 8
5.2 Intersection Operational Analysis 8
5.3 Access Recommendation 8
5.4 Neighborhood Connections 8
6.0 Findings 18
List of Figures: Page
Figure 1: Vicinity Map 4
Figure 2: Site Plan 5
Figure 3: Recent Peak Hour Traffic 11
Figure 4: 2025 Background Peak Hour Traffic 12
Figure 5: Trip Distribution 13
Figure 6: Site Generated Traffic 14
Figure 7: 2025 Short Range Total Peak Hour Traffic 15
Kechter Townhomes TIS -Page 2
TABLE OF CONTENTS (continued)
List of Tables: Page
Table 1: Trip Generation 10
Table 2: Recent Peak Hour Operations 16
Table 3: 2025 Background Peak Hour LOS Operations 15
Table 4: 2025 Short Range Total Peak Hour LOS Operations 17
Appendices: Page
Appendix A: Recent Traffic Counts 20
Appendix B: TIS Scoping 24
Appendix C: ITE Code 220 28
Appendix D: Level of Service (LOS) Tables 33
Appendix E: Aerial Image 34
Appendix F: HCM Calculations (Synchro) 36
Kechter Townhomes TIS -Page 3
1.0 Introduction
This Traffic Impact Study (TIS) is for the proposed Kechter Townhomes project located at the
northwest quadrant of Kechter Road and Jupiter Drive in Fort Collins, CO. The purpose of this
TIS is to identify project traffic generation characteristics, to identify potential traffic related
impacts on the adjacent street system, and to develop mitigation measures required for
identified traffic impacts.
Kellar Engineering LLC (KE) has prepared the TIS to document the results of anticipated traffic
conditions in accordance with the Larimer County Urban Area Street Standards (LCUASS) and
to identify any projected impacts to the transportation system. The project is anticipated to
generate approximately 395 daily weekday trips, 25 AM total peak hour trips, and 30 PM total
peak hour trips. See Table 1: Trip Generation.
2.0 Existing Conditions and Roadway Network
The project site is located on the north side of Kechter Road at the northwest quadrant of the
Kechter Road/Jupiter Drive intersection. Kechter Road is an arterial on the Fort Collins Master
Street Plan. This portion of Kechter Road currently has a thru lane each direction, bike lanes,
detached sidewalks, parking on the south side, and a posted speed of 40 mph adjacent to the
project site. See Figure 1: Vicinity Map.
2.1 Recent Traffic Volumes
Recent peak hour turning movement counts were conducted prior to COVID-19 impacts on
traffic volumes. The traffic counts were conducted during the peak hours of adjacent street
traffic in 15-minute intervals from 7:00 AM to 9:00 AM and 4:00 PM to 6:00 PM. These turning
movement counts are shown in Figure 3 with the count sheets provided in Appendix A.
Kechter Townhomes TIS -Page 4
Figure 1: Vicinity Map
Project
Site
Kechter Townhomes TIS -Page 5
Figure 2: Site Plan
Kechter Townhomes TIS -Page 6
3.0 Pedestrian Facilities
Detached sidewalks and bike lanes exist adjacent to the project site. These detached
sidewalks and bike lanes provide adequate pedestrian and bicycle facilities.
3.1 Zach Elementary School Traffic Coordination
Kellar Engineering also coordinated with staff at Zach Elementary School. The typical
weekday peak student drop-off time is between 7:45 AM and 8:15 AM. Also, the typical
weekday peak student pick-up time period is between 2:30 PM and 3:00 PM. Usually
the morning drop-off time is the busiest. The traffic counts cover the school’s peak traffic
time period covering the busiest school peak morning drop-off time. Therefore, the TIS
also covers the traffic impacts during the highest peak hour of school traffic at Zach
Elementary School.
4.0 Proposed Development
The proposed project consists of 54 townhome dwelling units. Primary access to the
site is proposed from one full-movement access point to Kechter Road. See Table 1:
Trip Generation and Figure 2: Site Plan.
4.1 Trip Generation
Site generated traffic estimates are determined through a process known as trip
generation. Rates and equations are applied to the proposed land use to estimate traffic
generated by the development during a specific time interval. The acknowledged source
for trip generation rates is the Trip Generation Report published by the Institute of
Transportation Engineers (ITE). ITE has established trip generation rates in nationwide
studies of similar land uses. For this study, KE used the ITE 10th Edition Trip Generation
Report average trip rates. Since traffic on the adjacent streets and intersections is
highest during the weekday peak hours, this study analyzed the weekday peak hour
traffic. The proposed project is anticipated to generate approximately 395 daily weekday
trips, 25 AM total peak hour trips, and 30 PM total peak hour trips. See Table 1: Trip
Generation.
Kechter Townhomes TIS -Page 7
4.2 Trip Distribution
Distribution of site traffic on the street system was based on the area street system
characteristics, existing traffic patterns and volumes, anticipated surrounding
development areas, and the proposed access system for the project. The directional
distribution of traffic is a means to quantify the percentage of site generated traffic that
approaches the site from a given direction and departs the site back to the original
source. Figure 5 illustrates the trip distribution used for the project’s analysis.
4.3 Traffic Assignment
Traffic assignment was obtained by applying the trip distributions to the estimated trip
generation of the development. Figure 6 shows the site generated peak hour traffic
assignment.
4.4 Short Range Total Peak Hour Traffic
Site generated peak hour traffic volumes were added to the background traffic volumes
to represent the estimated traffic conditions for the short range 2025 horizon. The
background (2025) and short range (2025) total traffic volumes are shown in Figure 4
and Figure 7 respectively. The traffic analysis in this study includes the traffic generated
from the proposed development plus a 2% increase in background traffic per year.
5.0 Traffic Operation Analysis
KE’s analysis of traffic operations in the site vicinity was conducted to determine the
capacity at the identified intersection. The acknowledged source for determining overall
capacity is the Highway Capacity Manual.
Kechter Townhomes TIS -Page 8
5.1 Analysis Methodology
Capacity analysis results are listed in terms of level of service (LOS). LOS is a
qualitative term describing operating conditions a driver will experience while traveling
on a particular street or highway during a specific time interval. LOS ranges from an A
(very little delay) to an F (long delays). A description of the level of service (LOS) for
signalized and unsignalized intersections from the Highway Capacity Manual are
provided in Appendix D.
5.2 Intersection Operational Analysis
Operational analysis was performed for the short range 2025 horizon. The calculations
for this analysis are provided in Appendix F. Using the short range total traffic volumes,
the project is projected to operate acceptably with all studied intersections and access
points meeting LCUASS LOS criteria. See Table 4: 2025 Short Range Total Peak Hour
Operation.
5.3 Access Recommendation
The site access location and proposed turning movements to Kechter Road were
reviewed. Left-turn lanes are typically required on arterials in Fort Collins. A left-turn
lane currently doesn’t exist on Kechter Road. The existing width on Kechter Road is
sufficient where a portion of Kechter Road could be re-striped to add this left-turn lane.
In light of the above information, it is recommended that the proposed site access to
Kechter Road is constructed as a full-movement access with a re-striped portion of
Ketchter Road to add this eastbound left-turn lane for the site access to Kechter Road.
See civil drawings for the Kechter Road re-striping plan.
5.4 Neighborhood Connections
The proposed roadway connection from the project site to the adjacent neighborhood to
the north was reviewed. The proposed roadway connection is via Quasar Way. This
roadway connection was already planned and stubbed out to tie into for future
connectivity. Per LCUASS Section 7.2.1, “All streets shall have a logical relationship to
the existing topography and to the location of existing or platted streets within adjacent
Kechter Townhomes TIS -Page 9
properties. Certain streets within the project may need to be extended to the project
boundary to provide for the future logical extension of the street through adjacent
properties.” This proposed connection is in compliance with LCUASS Section 7.2.1.
When reviewing the project’s site generated traffic, location, and travel time/travel length;
KE determined that the proposed connection will carry a small amount of traffic due to
the location and the project’s low trip generation. Based upon the site layout and
roadway layout, it will be quicker for a large majority of the vehicles within the project site
to use the Kechter Road/Site Access intersection directly than traveling thru the adjacent
neighborhood. See Figure 6 and Figure 7.
Kechter Townhomes TIS -Page 10
Table 1: Trip Generation (ITE Trip Generation, 10th Edition)
ITE
Code Land Use
Average
Daily Trips AM Peak Hour Trips PM Peak Hour Trips
Size Rate Total Rate % In In % Out Out Total Rate % In In % Out Out Total
220 Townhomes 54 DU 7.32 395 0.46 23% 6 77% 19 25 0.56 63% 19 37% 11 30
Total 395 6 19 25 19 11 30
DU = Dwelling Units
Kechter Townhomes TIS -Page 11
Figure 3: Recent Peak Hour Traffic
Kechter Townhomes TIS -Page 12
Figure 4: 2025 Background Traffic
Kechter Townhomes TIS -Page 13
Figure 5: Trip Distribution
Kechter Townhomes TIS -Page 14
Figure 6: Site Generated Traffic
Kechter Townhomes TIS -Page 15
Figure 7: 2025 Short Range Total Traffic
Kechter Townhomes TIS -Page 16
Table 2: Recent Peak Hour Operations
Level of Service (LOS) LOS
Compliance Intersection Movement AM PM
LOS LOS
Kechter Rd./Site Access
EB Left/Thru A A Y
EB Approach A A Y
WB Thru/Right A A Y
WB Approach A A Y
SB Left/Right A A Y
SB Approach A A Y
Table 3: 2025 Background Peak Hour Operations
Level of Service (LOS) LOS
Compliance Intersection Movement AM PM
LOS LOS
Kechter Rd./Site Access
EB Left/Thru A A Y
EB Approach A A Y
WB Thru/Right A A Y
WB Approach A A Y
SB Left/Right A A Y
SB Approach A A Y
Kechter Townhomes TIS -Page 17
Table 4: 2025 Short Range Total Peak Hour Operations
Level of Service (LOS) LOS
Compliance Intersection Movement AM PM
LOS LOS
Kechter Rd./Site Access
EB Left/Thru A A Y
EB Approach A A Y
WB Thru/Right A A Y
WB Approach A A Y
SB Left/Right B C Y
SB Approach B C Y
Kechter Townhomes TIS -Page 18
6.0 Findings
Based upon the analysis in this study, the proposed Kechter Townhomes project located at the
northwest quadrant of Kechter Road and Jupiter Drive in Fort Collins, CO demonstrates
compliance with the standards in the Larimer County Urban Area Street Standards (LCUASS)
for traffic at the time of development.
The findings of the TIS are summarized below:
• The proposed project is anticipated to generate approximately 395 daily weekday trips,
25 AM total peak hour trips, and 30 PM total peak hour trips.
• The project complies with the Levels of Service (LOS) requirements for traffic, the City of
Fort Collins Transportation Plan, and the Larimer County Urban Area Street Standards
(LCUASS).
• The study intersection will operate acceptably and comply with the intersection levels of
service (LOS) requirements in the LCUASS with the development of the project and
background traffic in the 2025 Short Range Total future.
• The proposed access to Kechter Road will operate safely and complies with the City’s
LOS requirements.
• The existing street improvements are sufficient to accommodate the proposed project’s
traffic. See Section 5.2 and Section 5.3.
• It is recommended that the proposed site access to Kechter Road is constructed as a
full-movement access with a re-striped portion of Kechter Road to add an eastbound left-
turn lane for the site access to Kechter Road. See Section 5.3.
Kechter Townhomes TIS -Page 19
APPENDICES:
Kechter Townhomes TIS -Page 20
Appendix A: Recent Traffic Counts
Kechter Townhomes TIS -Page 21
Kechter Townhomes TIS -Page 22
Kechter Townhomes TIS -Page 23
Kechter Townhomes TIS -Page 24
Appendix B: TIS Scoping
Kechter Townhomes TIS -Page 25
Kechter Townhomes TIS -Page 26
Kechter Townhomes TIS -Page 27
Kechter Townhomes TIS -Page 28
Appendix C: ITE Code 220
Kechter Townhomes TIS -Page 29
Kechter Townhomes TIS -Page 30
Kechter Townhomes TIS -Page 31
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Kechter Townhomes TIS -Page 33
Appendix D: Level of Service (LOS) Table
Level of Service Definitions
Level of Service Signalized Intersection Unsignalized Intersection
(LOS) Average Total Delay Average Total Delay
(sec/veh) (sec/veh)
A ≤ 10 ≤ 10
B > 10 and ≤ 20 > 10 and ≤ 15
C > 20 and ≤ 35 > 15 and ≤ 25
D > 35 and ≤ 55 > 25 and ≤ 35
E > 55 and ≤ 80 > 35 and ≤ 50
F > 80 > 50
LCUASS Table 4-3
Kechter Townhomes TIS -Page 34
Appendix E: Aerial Image
Kechter Townhomes TIS -Page 35
Kechter Townhomes TIS -Page 36
Appendix F: HCM Calculations (Synchro)
Recent AM Traffic Kellar Engineering LLC
3: Kechter Rd & Site Access 12/21/2020
HCM 2010 TWSC Synchro Report
Sean Kellar, PE, PTOE
Intersection
Int Delay, s/veh 0
Movement EBL EBT WBT WBR SBL SBR
Lane Configurations
Traffic Vol, veh/h 0 387 344 0 0 0
Future Vol, veh/h 0 387 344 0 0 0
Conflicting Peds, #/hr 0 00000
Sign Control Free Free Free Free Stop Stop
RT Channelized - None - None - None
Storage Length - - - - 0 -
Veh in Median Storage, # - 0 0 - 0 -
Grade, % - 0 0 - 0 -
Peak Hour Factor 92 92 92 92 92 92
Heavy Vehicles, % 2 22222
Mvmt Flow 0 421 374 0 0 0
Major/Minor Major1 Major2 Minor2
Conflicting Flow All 374 0 - 0 795 374
Stage 1 - - - - 374 -
Stage 2 - - - - 421 -
Critical Hdwy 4.12 - - - 6.42 6.22
Critical Hdwy Stg 1 - - - - 5.42 -
Critical Hdwy Stg 2 - - - - 5.42 -
Follow-up Hdwy 2.218 - - - 3.518 3.318
Pot Cap-1 Maneuver 1184 - - - 357 672
Stage 1 - - - - 696 -
Stage 2 - - - - 662 -
Platoon blocked, % - - -
Mov Cap-1 Maneuver 1184 - - - 357 672
Mov Cap-2 Maneuver - - - - 357 -
Stage 1 - - - - 696 -
Stage 2 - - - - 662 -
Approach EB WB SB
HCM Control Delay, s 0 0 0
HCM LOS A
Minor Lane/Major Mvmt EBL EBT WBT WBRSBLn1
Capacity (veh/h) 1184 ----
HCM Lane V/C Ratio -----
HCM Control Delay (s) 0 - - - 0
HCM Lane LOS A - - - A
HCM 95th %tile Q(veh) 0 ----
Recent PM Traffic Kellar Engineering LLC
3: Kechter Rd & Site Access 12/21/2020
HCM 2010 TWSC Synchro Report
Sean Kellar, PE, PTOE
Intersection
Int Delay, s/veh 0
Movement EBL EBT WBT WBR SBL SBR
Lane Configurations
Traffic Vol, veh/h 0 632 420 0 0 0
Future Vol, veh/h 0 632 420 0 0 0
Conflicting Peds, #/hr 0 00000
Sign Control Free Free Free Free Stop Stop
RT Channelized - None - None - None
Storage Length - - - - 0 -
Veh in Median Storage, # - 0 0 - 0 -
Grade, % - 0 0 - 0 -
Peak Hour Factor 92 92 92 92 92 92
Heavy Vehicles, % 2 22222
Mvmt Flow 0 687 457 0 0 0
Major/Minor Major1 Major2 Minor2
Conflicting Flow All 457 0 - 0 1144 457
Stage 1 - - - - 457 -
Stage 2 - - - - 687 -
Critical Hdwy 4.12 - - - 6.42 6.22
Critical Hdwy Stg 1 - - - - 5.42 -
Critical Hdwy Stg 2 - - - - 5.42 -
Follow-up Hdwy 2.218 - - - 3.518 3.318
Pot Cap-1 Maneuver 1104 - - - 221 604
Stage 1 - - - - 638 -
Stage 2 - - - - 499 -
Platoon blocked, % - - -
Mov Cap-1 Maneuver 1104 - - - 221 604
Mov Cap-2 Maneuver - - - - 221 -
Stage 1 - - - - 638 -
Stage 2 - - - - 499 -
Approach EB WB SB
HCM Control Delay, s 0 0 0
HCM LOS A
Minor Lane/Major Mvmt EBL EBT WBT WBRSBLn1
Capacity (veh/h) 1104 ----
HCM Lane V/C Ratio -----
HCM Control Delay (s) 0 - - - 0
HCM Lane LOS A - - - A
HCM 95th %tile Q(veh) 0 ----
2025 Background AM Traffic Kellar Engineering LLC
3: Kechter Rd & Site Access 12/21/2020
HCM 2010 TWSC Synchro Report
Sean Kellar, PE, PTOE
Intersection
Int Delay, s/veh 0
Movement EBL EBT WBT WBR SBL SBR
Lane Configurations
Traffic Vol, veh/h 0 445 395 0 0 0
Future Vol, veh/h 0 445 395 0 0 0
Conflicting Peds, #/hr 0 00000
Sign Control Free Free Free Free Stop Stop
RT Channelized - None - None - None
Storage Length - - - - 0 -
Veh in Median Storage, # - 0 0 - 0 -
Grade, % - 0 0 - 0 -
Peak Hour Factor 92 92 92 92 92 92
Heavy Vehicles, % 2 22222
Mvmt Flow 0 484 429 0 0 0
Major/Minor Major1 Major2 Minor2
Conflicting Flow All 429 0 - 0 913 429
Stage 1 - - - - 429 -
Stage 2 - - - - 484 -
Critical Hdwy 4.12 - - - 6.42 6.22
Critical Hdwy Stg 1 - - - - 5.42 -
Critical Hdwy Stg 2 - - - - 5.42 -
Follow-up Hdwy 2.218 - - - 3.518 3.318
Pot Cap-1 Maneuver 1130 - - - 304 626
Stage 1 - - - - 657 -
Stage 2 - - - - 620 -
Platoon blocked, % - - -
Mov Cap-1 Maneuver 1130 - - - 304 626
Mov Cap-2 Maneuver - - - - 304 -
Stage 1 - - - - 657 -
Stage 2 - - - - 620 -
Approach EB WB SB
HCM Control Delay, s 0 0 0
HCM LOS A
Minor Lane/Major Mvmt EBL EBT WBT WBRSBLn1
Capacity (veh/h) 1130 ----
HCM Lane V/C Ratio -----
HCM Control Delay (s) 0 - - - 0
HCM Lane LOS A - - - A
HCM 95th %tile Q(veh) 0 ----
2025 Background PM Traffic Kellar Engineering LLC
3: Kechter Rd & Site Access 12/21/2020
HCM 2010 TWSC Synchro Report
Sean Kellar, PE, PTOE
Intersection
Int Delay, s/veh 0
Movement EBL EBT WBT WBR SBL SBR
Lane Configurations
Traffic Vol, veh/h 0 726 482 0 0 0
Future Vol, veh/h 0 726 482 0 0 0
Conflicting Peds, #/hr 0 00000
Sign Control Free Free Free Free Stop Stop
RT Channelized - None - None - None
Storage Length - - - - 0 -
Veh in Median Storage, # - 0 0 - 0 -
Grade, % - 0 0 - 0 -
Peak Hour Factor 92 92 92 92 92 92
Heavy Vehicles, % 2 22222
Mvmt Flow 0 789 524 0 0 0
Major/Minor Major1 Major2 Minor2
Conflicting Flow All 524 0 - 0 1313 524
Stage 1 - - - - 524 -
Stage 2 - - - - 789 -
Critical Hdwy 4.12 - - - 6.42 6.22
Critical Hdwy Stg 1 - - - - 5.42 -
Critical Hdwy Stg 2 - - - - 5.42 -
Follow-up Hdwy 2.218 - - - 3.518 3.318
Pot Cap-1 Maneuver 1043 - - - 175 553
Stage 1 - - - - 594 -
Stage 2 - - - - 448 -
Platoon blocked, % - - -
Mov Cap-1 Maneuver 1043 - - - 175 553
Mov Cap-2 Maneuver - - - - 175 -
Stage 1 - - - - 594 -
Stage 2 - - - - 448 -
Approach EB WB SB
HCM Control Delay, s 0 0 0
HCM LOS A
Minor Lane/Major Mvmt EBL EBT WBT WBRSBLn1
Capacity (veh/h) 1043 ----
HCM Lane V/C Ratio -----
HCM Control Delay (s) 0 - - - 0
HCM Lane LOS A - - - A
HCM 95th %tile Q(veh) 0 ----
2025 Short Range Total AM Traffic Kellar Engineering LLC
3: Kechter Rd & Site Access 12/21/2020
HCM 2010 TWSC Synchro Report
Sean Kellar, PE, PTOE
Intersection
Int Delay, s/veh 0.3
Movement EBL EBT WBT WBR SBL SBR
Lane Configurations
Traffic Vol, veh/h 2 445 395 3 10 8
Future Vol, veh/h 2 445 395 3 10 8
Conflicting Peds, #/hr 0 00000
Sign Control Free Free Free Free Stop Stop
RT Channelized - None - None - None
Storage Length - - - - 0 -
Veh in Median Storage, # - 0 0 - 0 -
Grade, % - 0 0 - 0 -
Peak Hour Factor 92 92 92 92 92 92
Heavy Vehicles, % 2 22222
Mvmt Flow 2 484 429 3 11 9
Major/Minor Major1 Major2 Minor2
Conflicting Flow All 432 0 - 0 919 431
Stage 1 - - - - 431 -
Stage 2 - - - - 488 -
Critical Hdwy 4.12 - - - 6.42 6.22
Critical Hdwy Stg 1 - - - - 5.42 -
Critical Hdwy Stg 2 - - - - 5.42 -
Follow-up Hdwy 2.218 - - - 3.518 3.318
Pot Cap-1 Maneuver 1128 - - - 301 624
Stage 1 - - - - 655 -
Stage 2 - - - - 617 -
Platoon blocked, % - - -
Mov Cap-1 Maneuver 1128 - - - 300 624
Mov Cap-2 Maneuver - - - - 300 -
Stage 1 - - - - 654 -
Stage 2 - - - - 617 -
Approach EB WB SB
HCM Control Delay, s 0 0 14.7
HCM LOS B
Minor Lane/Major Mvmt EBL EBT WBT WBRSBLn1
Capacity (veh/h) 1128 - - - 390
HCM Lane V/C Ratio 0.002 - - - 0.05
HCM Control Delay (s) 8.2 0 - - 14.7
HCM Lane LOS A A - - B
HCM 95th %tile Q(veh) 0 - - - 0.2
2025 Short Range Total PM Traffic Kellar Engineering LLC
3: Kechter Rd & Site Access 12/21/2020
HCM 2010 TWSC Synchro Report
Sean Kellar, PE, PTOE
Intersection
Int Delay, s/veh 0.2
Movement EBL EBT WBT WBR SBL SBR
Lane Configurations
Traffic Vol, veh/h 9 726 482 9 5 5
Future Vol, veh/h 9 726 482 9 5 5
Conflicting Peds, #/hr 0 00000
Sign Control Free Free Free Free Stop Stop
RT Channelized - None - None - None
Storage Length - - - - 0 -
Veh in Median Storage, # - 0 0 - 0 -
Grade, % - 0 0 - 0 -
Peak Hour Factor 92 92 92 92 92 92
Heavy Vehicles, % 2 22222
Mvmt Flow 10 789 524 10 5 5
Major/Minor Major1 Major2 Minor2
Conflicting Flow All 534 0 - 0 1338 529
Stage 1 - - - - 529 -
Stage 2 - - - - 809 -
Critical Hdwy 4.12 - - - 6.42 6.22
Critical Hdwy Stg 1 - - - - 5.42 -
Critical Hdwy Stg 2 - - - - 5.42 -
Follow-up Hdwy 2.218 - - - 3.518 3.318
Pot Cap-1 Maneuver 1034 - - - 169 550
Stage 1 - - - - 591 -
Stage 2 - - - - 438 -
Platoon blocked, % - - -
Mov Cap-1 Maneuver 1034 - - - 166 550
Mov Cap-2 Maneuver - - - - 166 -
Stage 1 - - - - 581 -
Stage 2 - - - - 438 -
Approach EB WB SB
HCM Control Delay, s 0.1 0 19.7
HCM LOS C
Minor Lane/Major Mvmt EBL EBT WBT WBRSBLn1
Capacity (veh/h) 1034 - - - 255
HCM Lane V/C Ratio 0.009 - - - 0.043
HCM Control Delay (s) 8.5 0 - - 19.7
HCM Lane LOS A A - - C
HCM 95th %tile Q(veh) 0 - - - 0.1
Sean Kellar, PE, PTOE
Principal Engineer
Education
B.S., Civil Engineering, Arizona State
University – Tempe, AZ
Registration
Colorado, Professional Engineer (PE)
Wyoming, Professional Engineer (PE)
Arizona, Professional Engineer (PE)
Kansas, Professional Engineer (PE)
Missouri, Professional Engineer (PE)
Professional Traffic Operations Engineer
(PTOE)
Professional Memberships
Institute of Transportation Engineers
(ITE)
Industry Tenure
21 Years
Sean’s wide range of
expertise includes:
transportation plan-
ning, traffic modeling
roadway design, bike
and pedestrian facili-
ties, traffic impact
studies, traffic signal
warrant analysis, parking studies, corridor planning
and access management. Sean’s experience in both the
private and public sectors; passion for safety and ex-
cellence; and strong communication and collaboration
skills can bring great value to any project. Prior to
starting Kellar Engineering, Sean was employed at the
Missouri Department of Transportation (MoDOT) as
the District Traffic Engineer for the Kansas City
District. Sean also worked for the City of Loveland,
CO for over 10 years as a Senior Civil Engineer
supervising a division of transportation/traffic
engineers. While at the City of Loveland, Sean
managed several capital improvement projects,
presented several projects to the City Council and
Planning Commission in public hearings, and managed
the revisions to the City’s Street Standards. Sean is
also proficient in Highway Capacity Software,
Synchro, PT Vissim, Rodel, GIS, and AutoCAD.
WORK EXPERIENCE:
Kellar Engineering, Principal Engineer/President – January 2016 – Present
Missouri Department of Transportation, District Traffic Engineer, Kansas City District – June
2015 – January 2016
City of Loveland, Colorado, Senior Civil Engineer, Public Works Department – February 2005 –
June 2015
Kirkham Michael Consulting Engineers, Project Manager - February 2004 – February 2005
Dibble and Associates Consulting Engineers, Project Engineer – August 1999 – February 2004