Franklin County Engineer’s Office Safety Studies

Lanham Engineering has performed on-call engineering services for the Franklin County Engineer’s Office for safety studies and traffic analysis since 2015. We have completed full studies or performed analysis on eleven different intersections. As a result of our studies, Franklin County has received ODOT funding for seven different roundabouts in the last several years.

STW Safety Studies – Subconsultant Contracts

Through ODOT’s Statewide Safety program, we have served as a subconsultant under 11 different contracts with primes where we provided services ranging from traffic analysis support to full traffic studies. Throughout these contracts, we have worked on dozens of studies in almost every District in Ohio, and plan to stay committed to serving the safety program.

STW Safety Studies – Prime Contract

As a first-time prime consultant with ODOT, Lanham Engineering was contracted to manage safety studies, abbreviated safety studies, and a data driven safety analysis along with two subconsultants. We primed a total of ten studies in Districts 5, 6, 8, and 9. We successfully managed up to four studies at a time and utilized both subconsultants on some tasks.

Central Ohio Corridor Studies

Our team performed corridor studies for several jurisdictions in Central Ohio. In Delaware County along South Old State Road, we developed future year traffic volumes in order to determine future roadway cross-sections and traffic control along the corridor. For the City of Columbus, we provided analysis for capacity, safety, and parking along West Broad Street to determine future needs for the Hilltop Streetscape Study Phase 1.

In addition, Lanham studied US-33 between Nottingham Road and Canterbury Road for the City of Upper Arlington. We performed crash and capacity analysis along with signal and turn lane warrants to determine how best to address existing issues and encourage future redevelopment.

Various School Traffic Impact Studies

We have provided traffic impact studies for several school locations since the company’s founding in 2013. Urbana City Schools required a study to be approved by ODOT for a new building along the south side of SR-68 where a new PK-8 school will replace five other schools.

For Lancaster City Schools, our team studied the north side of the city where a new junior high school will be built. Most recently in Gahanna, a replacement elementary school will be added to an existing middle school property for Gahanna-Jefferson City Schools.

ODOT District 6 - FRA-33-6.15

A 2019 safety study of the intersection of US-33 (Riverside Drive) at Hayden Run Road determined a need for an additional northbound left turn lane in order to reduce crashes, after the intersection was designated a high crash location on the Highway Safety Improvement Program (HSIP) in 2017. This project includes widening and radius work at the intersection to accommodate the dual left turn lanes. Our portion of the work included the signing and pavement marking design to current OMUTCD standards, maintenance of traffic plans for both vehicular and pedestrian traffic, and the replacement of the traffic signal.

City of Columbus – Downtown General Engineering Services Contract

We partnered with Carpenter Marty Transportation to provide engineering services for the City of Columbus downtown area. The first task was a unique before and after study for bicycle queue boxes which were added for cyclists to make two-stage left turns at intersections along one-way streets as part of a request to experiment through FHWA.

The project involved data collection which included traffic counts, tracking bicycle movements, and analysis on the use of the queue boxes. The second task was updating the City’s downtown VISUM model used for improvements and changes to the roadways and land use over the past six years.

STW Signal Timing

Lanham Engineering performed various support tasks for STW Signal Corridor Timing projects as a subconsultant in ODOT Districts 1, 2, 6, and 11. Corridor timing included data collection, field visits, travel time runs and synchro analysis in Wooster, Union, Allen, and Belmont counties.

City of Columbus – Safety Studies Contract

As a subconsultant on three different task orders, Lanham Engineering provided traffic engineering services under the City of Columbus Safety Studies contracts. While many of the tasks are either safety studies or cursory reviews, we have been assigned to more broad safety-related tasks over the past six years. Other tasks included speed studies, sight distance triangle exhibits, preliminary design for marking improvements for bicycle and pedestrian facilities, and capacity analysis for a road diet.

City of Columbus – Parsons Avenue Rehabilitation

Parsons Avenue between Broad Street to Franklin Street, part of the Olde Towne Quarter on the east side of Columbus, needed a streetscape facelift including new bike lanes and reconstructed signals at two intersections with ADA compliant components. We designed two mast arm signals including interconnect to City of Columbus standards with ADA compliant features with another subconsultant as the independent signal reviewer. The team received an ODOT Consultant Evaluation Score of 96% in January 2017 and construction was completed in Spring 2018.

ODOT District 10 – WAS-32-9.73/10.45

Our team assisted EMH&T providing signal and traffic control design services including igning and pavement markings as part of a safety design contract. The two locations which were studied showed the need for safety improvements included striping modifications and a redesign of a three-legged intersection transformed into a more traditional design. Lanham Engineering redesigned the two existing span wire signals to mast arms for greater visibility with ADA compliant pedestrian features as well as the traffic control design components.

City of Columbus – UIRF General Engineering Services Contract

We are partnered with Crawford, Murphy & Tilly to provide engineering services for the City of Columbus on a task order contract. The largest task was to design curb extensions at five locations in Franklinton in order to improve pedestrian access and enhance aesthetics.

Our portion of the project included performing turning radius analysis using Autoturn software and creating exhibits to show suggested curb locations. We also prepared the traffic control plan sheets for the signing and pavement marking changes required for the design. Another task included signing, marking, and MOT design with a pedestrian detour for a sidewalk widening/replacement along 3 rd Avenue at Perry Street.

ODOT District 4 – SUM-76-5.53

Lanham Engineering worked as a subconsultant to GPD Group where we designed signal modifications at four intersections in ODOT District 4 at the I-76 interchanges with West State Street and SR-619 in Barberton. They were closely spaced which created capacity deficiencies and safety problems. The interchange modification project created collector-distributor roads between the interchanges which allowed for better flow and less weaving on the mainline.

ODOT Central Office – FRA-70/71 Project 4A/4H/4R ITS Design

The I-71 corridor between 5 th Avenue and SR-161 often experiences congestion and a high frequency of crashes during peak hours. This project will study the feasibility of adding a hard shoulder running lane during those hours to help ease congestion and increase safety. Our role is crash analysis and evaluating the safety performance of several alternatives as a subconsultant to Gannett Fleming.

ODOT District 12 – CUY-90-21.02 Improvements

In ODOT District 12, Martin Luther King Jr. Drive in Cleveland is a three-lane minor arterial road which experienced high crash rates at its interchanges with I-90/SR-2. Our portion of this safety improvement was to develop plans for the signing and pavement marking improvements along the corridor as a subconsultant to TRC Engineers.

ODOT District 12 – CUY-490/010-02.09/19.28 Opportunity Corridor Phase 3 Design-Build

In our first design-build project, we partnered with Kokosing and Michael Baker to prepare signal plans for four intersections along the third phase of the Opportunity Corridor roadway in District 12. This final section of CUY-10 will connect I-490/I-77 and University Circle, and required coordination with the City of Cleveland.

City of Columbus – Downtown Signals Part 2

In our first City of Columbus prime contract, we are currently designing the replacement of existing traffic signals at the intersections of Rich Street at 3 rd Street, 4th Street, 5th Street, and Grant Avenue with new decorative mast arm traffic signals, brick intersection corners, decorative street lighting, and interconnect. Traffic will be maintained during construction through temporary signals and closing curb lanes. The project includes public involvement and environmental efforts, roadway design of new brick sidewalk and curb ramps at each intersection, and storm sewer replacements at various locations, all of which will be handled by our subconsultants.

COTA West Broad Street BRT Corridor

The Central Ohio Transit Authority (COTA) plans to implement a Bus-Rapid-Transit (BRT) system along West Broad Street as part of the LinkUS Mobility Initiative, a transformational vision for growth and mobility in Columbus. Our work began on the study portion of the project and included traffic forecasting, capacity analysis, parking analysis, and crash analysis. The design phase of the project is ongoing, with 60% plans currently being under design. Our design work consists of signing and marking design to current OMUTCD standards, and replacement or modification of 27 traffic signals. Portions of the corridor will be widened and warrant a complete reconstruction of the signals, while others will undergo modifications to implement lane usage changes and apply bus rapid transit priority treatments.

ODOT STW Safety Studies

Lanham Engineering has served as a prime consultant on ODOT’s Statewide Safety Studies contract for the past six years, recently winning our fourth consecutive contract. We have been assigned over three dozen studies during that time that included a mix of abbreviated and formal studies. Although the process is similar for each study, the Lanham team prides ourselves on treating each study as a unique entity requiring unique solutions.

ODOT SR-161 Improvements for the Silicon Heartland

ODOT plans to improve the SR-161 corridor leading to the Silicon Heartland to prepare for the incoming Intel microchip facility. Lanham Engineering has contributed to this effort by developing opening and design year traffic volumes. We also prepared an interchange study to analyze the capacity throughout the corridor to confirm that the proposed lane addition to SR-161 will improve traffic flow. We are currently forecasting additional traffic to the east of the Intel site for further development.

ODOT STW Design Traffic

The purpose of this contract is to develop certified traffic on a task order basis for various projects throughout the state. Lanham Engineering is currently holding this statewide design traffic contract for the third straight time. This ongoing contract has been largely managed by Kristi Norfolk, serving as lead engineer with junior engineers working alongside her on most tasks. The most challenging recent task was FRA-161-15.80, which involved developing forecasts along I-270 and SR-161 for improvements needed for the new Intel development. The forecasts were on an aggressive schedule considering there were six different model scenarios used, which was completed one week early.

Fishinger Road Phases 1 & 2 – Signal and Traffic Control Design

Lanham Engineering is working as a subconsultant to provide construction plans for the reconstruction of Fishinger Road and addition of sidewalks and a shared use path between Tremont Road and Riverside Drive in Upper Arlington, Ohio. Our portion of work includes signing/pavement marking design to current OMUTCD standards for the entire corridor and signal design/modification upgrades at the Kioka Avenue, Mountview Road, and Reed Road intersections. We are also developing and designing Upper Arlington’s first fiber optic cable interconnect installation along the corridor, connecting the traffic signals for coordination and providing communication options for other City entities.

CUY-77-11.21 – Alternative Route Traffic Analysis and Traffic Control Design

More information to come!

North Knot Feasibility Study

Lanham Engineering is currently collaborating to prepare a feasibility study for the North Knot (the area surrounding SR-315 between Goodale Avenue and North Broadway). The first task involved determining potential future pinch points in the network that was used during the charrette process to pinpoint areas that need to be included in future improvements. Our current tasks includes forecasting 2050 traffic volumes for the network including six interchanges and 34 intersections and submitting them for certified traffic approval. These volumes will be used in capacity analysis to narrow down alternatives to a preferred option to move forward into preliminary design.