CVEN 635 STREET & HIGHWAY DESIGN Instructor: Dominique Lord Room 301A (CE/TTI Tower) Phone: (979) 458-3949 d-lord@tamu.edu Fall 2017

TEXTBOOK Required Text: Texas Roadway Design Manual, Revised October 2014, http://onlinemanuals.txdot.gov/txdotmanu als/rdw/rdw.pdf Recommended Texts: A Policy on Geometric Design of Highway and Streets, 6th Ed., American Association of State Highway and Transportation Officials (AASHTO), 2011. Schoon, J.G. Geometric Design Projects for Highways: An Introduction, 2nd Edition, ASCE, Reston, Va., 1999.

TEXTBOOK Other relevant material: Wright, P.H., and Dixon, K. Highway Engineering. 7th Ed., John Wiley & Sons, Hoboken, N.J., 2004. Lamm, R., Psarianos, B., and Mailaender, T., Highway Design and Traffic Safety Engineering Handbook, McGraw-Hill, New York, New York, 1999. Staplin, L., Lococo, K., Byington, S., and Harkey, D. Highway Design Handbook for Older Drivers and Pedestrians. U.S.DOT/FHWA Publication No. FHWA- RD-01-103. Washington, D.C., 2001.

TEXTBOOK Other relevant material: Fitzpatrick, and Wooldridge, M. NCHRP Synthesis 299, Recent Geometric Design Research for Improved Safety and Operations, Transportation Research Board, 2001. http://onlinepubs.trb.org/onlinepubs/nchrp/nchrp_syn_ 299.pdf The Access Board, ADA Standards for Transportation Facilities, 2006. http://www.access-board.gov/guidelines- and-standards/transportation/facilities/ada-standards-for- transportation-facilities www.access-board.gov FHWA, Flexibility in Highway Design, Washington, D.C., 2005. http://www.fhwa.dot.gov/environment/flex/index.ht m

ACCESS TO MATERIAL https://ceprofs.civil.tamu.edu/dlord/CVEN_635_Co urse_Material.htm

GRADING Assignments: 25% (5-6) Laboratories: 35% (5-6) Term Paper: 30% (due Dec. 5th, 2017; presentation on Dec. 1st) Class Participation: 10% Grading Scheme: A = 90% and above, B = 80 to 89%, C = 70 to 79%, D = 60 to 69%, F = below 60%

TOPICS COVERED Basic Design: Highway Design Classification, Design Controls and Criteria & Alignments (1 lecture) Design and Operational Speeds (1 lecture) Design Consistency (1 lecture) Flexibility in Highway Design and Design Exceptions (1 lecture) Three-Dimensional Alignment (1 lecture) Interchange Design (2 lectures) HOV and Managed Lanes (1 lecture) Roadside Design (1 lecture) Designing for Older Drivers (1-lecture) Designing for Pedestrians & Cyclists, include accessibility (ADA) issues (1 lecture) Environmental Impacts and Highway Design (1 lecture)

Examples of highway design problems 5 Terrible U.S. Road and Highway Designs: Lessons Learned http://www.popularmechanics.com/technology/eng ineering/infrastructure/5-terrible-us-road-and- highway-designs Liability (big business) Ex: http://www.stritmatter.com/_pdf/skwc- HighwayDesignLiability.pdf

Examples of highway design problems http://www.weathergraphics.com/tim/dumbroad/justkid.jpg

Examples of highway design problems http://www.righthandfirm.com/photos/highway-design.jpg

Examples of highway design problems http://weathergraphics.com

Examples of highway design problems http://weathergraphics.com

Examples of highway design problems http://weathergraphics.com

Examples of highway design problems http://weathergraphics.com

Examples of highway design problems

Examples of highway design problems

Examples of new design tools http://www.youtube.com/watch?v=Df59mWQ dGtQ

Examples of new design tools http://www.trafficsafetydirect.com/img/glass_beads_2.jpg

Important Issues in Highway Design Automobile Oriented Society More cars than drivers (BTS Survey 03) Shift from construction of new facilities to maintenance of existing facilities (e.g., lane widening, paving, intelligent transportation systems, etc.) Resurgence in highway funding Concern for conditions of infrastructure Renewed public willingness for public expenditures (e.g., recent bill in Texas to increase funding for highways) Reauthorization of transportation funds ($286.5B) 2012 Bill signed on July 6th (http://banking.senate.gov/public/_files/Transit_Bill _Summary_and_Funding_Chart.pdf)

Important Issues in Highway Design Fleet of vehicles Larger trucks/smaller vehicles Better vehicles performance and design (e.g., lower center of gravity, improved acceleration, lighter vehicle components, etc.) Age of population Baby boomers are getting older (20% 65+ in 2003) Safety issues with older (i.e., visual search, reaction time, more fragile health, etc.)

Important Issues in Highway Design Value Engineering New area that aims to find ways to save money in design Has been applied in highway design Can compromise safety (e.g., Highway 407 in Ontario, Canada) Liability Increasing number of lawsuits (DOTs, Cities, MPOs, etc.) Usually always based on (un)safety (after crashes occur)

Important Issues in Design Safety Audits Becoming increasingly popular (liability is a factor) Explicitly look at all safety components of a project (from initial concept to construction) Goes beyond design guidelines Partial truth: good design may avoid many problems New design criteria under development Less focused on vehicle speed Sensitive context design Transportation Security Terrorist threats against transportation infrastructures See, e.g., http://onlinepubs.trb.org/Onlinepubs/dva/SecurityActivities. pdf

Important Issues in Design Strategic Research Operational effects Safety effects Design tools Non-motorized vehicles or users (pedestrians, bicyclists) Unusual design (large intersections) Innovative design (pedestrian crosswalks) Technology (influences the design process) Low volume roads Environmental impacts Toll and HOV lanes