BASICS OF ITE TRIP GENERATION AND ITS ROLE IN ...

1 BASICS OF ITE TRIP GENERATION . AND ITS ROLE IN calculating . transportation impact fees . Eric J. Tripi, , PTOE. Iteris, Inc. 505 Belle Hall Parkway, y, Suite 202. Mount Pleasant, SC 29464. 2011 Growth and Infrastructure Consortium Conference October 27th, 2011. Innovation for better mobility Presentation Agenda g I. I. Who is your Presenter? II. BASICS of ITE Trip GENERATION III Berkeley III. B k l C County, t SC IImpactt Fee F Ordinance O di IV. Two Independent impact Fee Studies V. Final Agreement Questions 2011 Growth and Infrastructure Consortium Conference October 27th, 2011. 2 Innovation for better mobility I. Who is your Presenter? 2011 Growth and Infrastructure Consortium Conference October 27th, 2011.

2 3 Innovation for better mobility Who Am I? Eric J. Tripi , PTOE. Work for Iteris, Inc. Currently live and work in Mount Pleasant Pleasant, SC. Over 17 years of Traffic and transportation Consulting Experience Registered Professional Engineer ( ) in several states p Certified Professional Traffic Operations Engineer g ((PTOE)). 2011 Growth and Infrastructure Consortium Conference October 27th, 2011. 4 Innovation for better mobility Where Am I? 2011 Growth and Infrastructure Consortium Conference October 27th, 2011. 5 Innovation for better mobility Education Michigan State University - BSCE. University of Nebraska - MSCE. 2011 Growth and Infrastructure Consortium Conference October 27th, 2011.

3 6 Innovation for better mobility Other Notes Served as an ITE Technical Advisory Committee Member for the updating of ITE's Manual of transportation Engineering Studies, 1st ed.. Served as President of the South Carolina Section of ITE in 2007. Adjunct professor at The Citadel in Charleston, South Carolina, teaching traffic and transportation engineering to undergraduates undergraduates. Certified National Highway Institute (NHI) instructor and currently on-call to teach at different locations across the United States. 2011 Growth and Infrastructure Consortium Conference October 27th, 2011. 7 Innovation for better mobility Who Is Iteris?

4 20+ Offices in 14 States HQ in Santa Ana, CA. Specialize in: 9 Traffic Engineering 9 transportation Planning 9 Intelligent transportation Systems (ITS). 9 Product Side Video Cameras/ITS Technology 2011 Growth and Infrastructure Consortium Conference October 27th, 2011. 8 Innovation for better mobility What Do I Do? Traffic impact Studies Level of Service Analysis Parking Studies Traffic Signal Design Signal Systems/Timing Optimization Intelligent transportation Systems (ITS). Data Collection 2011 Growth and Infrastructure Consortium Conference October 27th, 2011. 9 Innovation for better mobility II. BASICS of ITE Trip GENERATION 2011 Growth and Infrastructure Consortium Conference October 27th, 2011.

5 10 Innovation for better mobility BASICS of ITE Trip GENERATION Who is ITE. Institute of transportation Engineers Founded in 1930. Nearly 17. 17,000. 000 members in 92 countries Over 90 local chapters and 130 student organizations Educational and Scientific organization 2011 Growth and Infrastructure Consortium Conference October 27th, 2011. 11 Innovation for better mobility BASICS of ITE Trip GENERATION What is Trip GENERATION ? The estimated peak hour and daily site traffic volumes for a particular land use. Involves development of relationships between vehicle trips and land use characteristics E. Existing i ti ITE Resources R. Trip GENERATION , 8th Edition, 2008, Volumes 1, 2 and 3.

6 Tripp GENERATION Handbook,, An ITE Recommended Practice, o 2nd Edition published by ITE, June 2004. 2011 Growth and Infrastructure Consortium Conference October 27th, 2011. 12 Innovation for better mobility BASICS of ITE Trip GENERATION What is Trip GENERATION Used For? Regional R i l studies t di Considers land use and socio-economic characteristics Site impact p analysis y Analysis of trip GENERATION of specific land uses Zoning and land use planning applications Sizing transportation system and individual facilities impact fee determination Environmental assessment Traffic impacts on air and noise 2011 Growth and Infrastructure Consortium Conference October 27th, 2011.

7 13 Innovation for better mobility BASICS of ITE Trip GENERATION A Trip or Trip End Single or one-directional vehicle movement to or from a site/area One-way movement 50 150. Peak-Hour Trip GENERATION 50 entering trips 150 exiting trips Office Development 200 total trip ends per hour Total Trip Ends Total of all trips entering and exiting a site during a designated time period 2011 Growth and Infrastructure Consortium Conference October 27th, 2011. 14 Innovation for better mobility BASICS of ITE Trip GENERATION Trip Types Primaryy trips p Main reason for a trip Upon exit, trips will travel back in the direction from which they came Primary Trips Pass-by trips Trips made as an intermediate stop Upon exit, trips will continue to travel in th same direction the di ti th they were ttraveling li before stopping at the site NOT a NEW trip Pass-by Trips 2011 Growth and Infrastructure Consortium Conference October 27th, 2011.

8 15 Innovation for better mobility BASICS of ITE Trip GENERATION Trip Types Diverted Trips Trips that are diverted from nearby roadways o Required to use another roadway to access site Adds traffic to streets directly adjacent to development site o Not to nearby major roadways Direction Di i off travell upon exit i may b be similar i il to that h off pass-by b trips i Difficult to identify 2011 Growth and Infrastructure Consortium Conference October 27th, 2011. 16 Innovation for better mobility BASICS of ITE Trip GENERATION Trip Types Entering Diverted- PROPOSED Link Trip DEVELOPMENT SITE. Pass-by trips are made as an intermediate stop Exiting Primary Trip Exiting Pass-by Trip Entering Pass-by Trip Entering g Primary y Trip p Primary trips are the main reasons for LEGEND.

9 The trip Trips Prior to Visiting the Development Exiting Diverted-Link Trips After Visiting the Development Trip Primary Trip Diverted-link trips are attracted from the passing traffic on nearby Pass-Byy Trip p roadwaysy but require q a diversion from Diverted-Link Trip the intended travel path 2011 Growth and Infrastructure Consortium Conference October 27th, 2011. 17 Innovation for better mobility 17. BASICS of ITE Trip GENERATION Trip Types Internal Capture p Trips p Trips made within mixed-use developments Trips are on internal roadways only and do not use adjacent main roadways Result in trip reductions for mixed-use developments Example of Internal Capture Trip: Driving/Walking from your office to a restaurant within a large mixed-use development, but via internal roadways only.

10 2011 Growth and Infrastructure Consortium Conference October 27th, 2011. 18 Innovation for better mobility BASICS of ITE Trip GENERATION Trip Types 2011 Growth and Infrastructure Consortium Conference Source: ITE Trip GENERATION Handbook, Second Edition ITE 2004 th October 27 , 2011. 19 Innovation for better mobility BASICS of ITE Trip GENERATION Trip Types Internal Capture p Trips p Notes Existing data based on 1990's FDOT methodology/research New Florida Community Capture Methodology - 2009. Newly completed research (NCHRP 8-51), results have shown*: o ITE Method overestimated traffic o NCHRP 8. 8-51. 51 method found to be most accurate accurate, e , g reduced estimation errors by 1/5th to 1/3rd of other methods More data needed *Source: TTI, 2010 ITE Annual Meeting Presentation 2011 Growth and Infrastructure Consortium Conference October 27th, 2011.