HomeMy WebLinkAboutTraffic Analysis Memo 08-20-19
STEVEN J. FEHRIBACH, P.E.
PRESIDENT
JOSEPH T. RENGEL, P.E.
VICE PRESIDENT
R. MATTHEW BROWN, P.E.
VICE PRESIDENT
8365 KEYSTONE CROSSING, SUITE 201 – INDIANAPOLIS, INDIANA 46240
TELEPHONE (317) 202-0864 – FACISMILE (317) 202-0908
TRANSPORTATION ENGINEERING STUDIES ● TRAFFIC IMPACT ANALYSES
STREET DESIGN ● HIGHWAY DESIGN ● TRAFFIC ENGINEERING
PARKING LOT DESIGN ● TRANSPORTATION PLANNING STUDIES
CONSTRUCTION OBSERVATION ● SITE ENGINEERING
REGISTRATION
INDIANA
ILLINOIS
KENTUCKY
MICHIGAN
OHIO
MISSOURI
TEXAS
MEMORANDUM
DATE: August 20, 2019
TO: Ms. Angie Conn, AICP, Planning Administrator
City of Carmel, Planning & Zoning Department
FROM: Steven J. Fehribach, P.E.
President
RE: Carmel Elementary School along Clay Center Road
Purpose
The purpose of this analysis is to determine what affect if any a new school with a maximum of 750
students would have on Clay Center Road at the proposed access points. Recommendations will be given
for the proposed geometrics of the access points. As currently planned the elementary school will have two
access points located along Clay Center Road. The southern most access point will not be utilized for
parent pick-up and delivery of students. It will be primarily utilized for bus traffic. The northern most access
point will be used for parent pick-up and delivery of students during the AM and PM school times.
Existing Traffic Data
Existing traffic counts were conducted on Clay Center Road in July 2019. This count has shown that the
AM peak hour is the most critical and will have the largest influence on the school access points. The PM
peak hour of the school is between 2:30PM and 3:30PM (?), and this traffic will not impact the PM peak
hour of Clay Center Road.
Capacity Analysis
In order to determine how the access points will function when the school is fully occupied a capacity
analysis was performed, and the trip generation for the new school was calculated. Currently the school is
planned for a maximum of 750 students. Therefore, the capacity analysis was calculated using the
maximum number of students. Once the number of trips were determined, they were assigned and
distributed to the access points. Due to the fact that the north access is solely for parent pick-up and
delivery of students, 100% of trips were assigned to that access point. A capacity analysis was completed
for the northern most access point which included the highest peak hour on the road system with the
2
highest peak hour of the school entering and exiting the access point. The following table is a summary of
the levels of service.
Southbound Westbound
Left Turn Through Right Turn Left Turn
A A B E
Recommendations
Based on the capacity analysis, trip generation, and assignment and distribution of traffic the following
recommendations are provided.
• Both access points should be constructed with two outbound lanes – one exclusive right turn lane
and one exclusive left turn lane.
• Both access points should also include a right turn lane from Clay Center Road onto the school
property.