Kentucky Transportation Center

Research Report KTC-11-19/SPR415-11-1F

KENTUCKY TRANSPORTATION CENTER

GUIDELINES FOR ROAD DIET CONVERSIONS OUR MISSION

We provide services to the transportation community through research, technology transfer and education. We create and participate in partnerships to promote safe and effective transportation systems.

OUR VALUES

Teamwork Listening and communicating along with courtesy and respect for others. Honesty and Ethical Behavior Delivering the highest quality products and services. Continuous Improvement In all that we do. 5HVHDUFK5HSRUW .7&63R11-) GUIDELINES FOR ROAD DIET CONVERSIONS

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1. Report Number 2. Government Accession No. 3. Recipient’s Catalog No. KTC-11-19 / SPR415-11-1F

4. Title and Subtitle 5. Report Date Guidelines for Road Diet Conversions November 2011

6. Performing Organization Code

7. Author(s) 8. Performing Organization Report No. N. Stamatiadis, A. Kirk, C. Wang, and A. Cull KTC-11-19 / SPR415-11-1F

9. Performing Organization Name and Address 10. Work Unit No. Kentucky Transportation Center College of Engineering University of Kentucky 11. Contract or Grant No. Lexington, Kentucky 40506-0281 SPR316

12. Sponsoring Agency Name and Address 13. Type of Report and Period Covered: Final Report; 07/10 – 12/11 Kentucky Transportation Cabinet Fi l 200 Mero Street 14. Sponsoring Agency Code Frankfort, KY

15. Supplementary Notes

16. Abstract

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17. Key Words 18. Distribution Statement Intersection Design, Roundabout, Inside left-turn, median Unlimited u-turn, superstreet, continuous flow, jughandle, bowtie, intersection evaluation

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CONCLUSIONS AND SUMMARY

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REFERENCES %XUGHQ ' DQG /DJHUZH\ 3 Road Diets: Fixing the Big Roads ZZZZDONDEOHRUJGRZQORDGUGLHWVSGI$FFHVVHG-XO\ )HGHUDO +LJKZD\ $GPLQLVWUDWLRQ Evaluation of Lane Reduction “Road Diet” Measures and Their Effects of Crashes and Injuries)+:$+57:DVKLQJWRQ'& )HGHUDO+LJKZD\$GPLQLVWUDWLRQ Evaluation of Lane Reduction Road Diet Measures on Crashes)+:$+57:DVKLQJWRQ'& )HGHUDO+LJKZD\$GPLQLVWUDWLRQ Manual on Uniform Traffic Control Devices:DVKLQJWRQ '& *DWHV71R\FH'7DODGD9+LOO/ 7KH6DIHW\DQG2SHUDWLRQDO(IIHFWVRI³5RDG'LHW´ &RQYHUVLRQVLQ0LQQHVRWDPaper No. 07-1918$FFHVVHGIURP75%$QQXDO0HHWLQJ&' 520:DVKLQJWRQ'& *HHGLSDO\63DWLO6DQG/RUG' ([DPLQLQJ0HWKRGVIRU(VWLPDWLQJ&UDVK&RXQWV $FFRUGLQJWR7KHLU&ROOLVLRQ7\SH Transportation Research Record 2165:DVKLQJWRQ'&SS ±

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APPENDIX A .HQWXFN\&DVH6WXGLHV

ROAD DIET CASE STUDY EVALUATION US 60 VERSAILLES, KY (FINAL) REPORT Prepared by .HQWXFN\7UDQVSRUWDWLRQ&HQWHU

Prepared for: .HQWXFN\7UDQVSRUWDWLRQ&DELQHW 'LYLVLRQRI3ODQQLQJ

Date: $XJXVW

TABLE OF CONTENTS 5RDG'LHW&DVH6WXG\(YDOXDWLRQ 869HUVDLOOHV.\ )LQDO 5HSRUW ,QWURGXFWLRQ 5RDG'LHW,PSOHPHQWDWLRQ 5HVXOWLQJFRQGLWLRQV 7UDYHO7LPHV &UDVK+LVWRU\ (YDOXDWLRQ0HWKRGRORJ\ 6DIHW\(YDOXDWLRQ 2SHUDWLRQV(YDOXDWLRQ (YDOXDWLRQ6XPPDU\ LIST OF FIGURES )LJXUH6WXG\$UHD )LJXUH7\SLFDO6HFWLRQV )LJXUH5RDG'LHW&URVV6HFWLRQ )LJXUH86ZLWK6WDQGDUG5RDG'LHW )LJXUH86ZLWK$GGHG6KRXOGHUV )LJXUH86ZLWK3DUNLQJ )LJXUH865RDG'LHW7\SHVDQG/RFDWLRQV LIST OF TABLES

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Figure 3: Road Diet Cross-Section

Figure 4: US 60 with Standard Road Diet

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Figure 5: US 60 with Added Shoulders

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Figure 6: US 60 with Parking

Figure 7: US 60 Road Diet Types and Locations

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ROAD DIET CASE STUDY EVALUATION US 27 CAMPBELL COUNTY, KY (FINAL) REPORT Prepared by .HQWXFN\7UDQVSRUWDWLRQ&HQWHU

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Date: $XJXVW TABLE OF CONTENTS ,QWURGXFWLRQ 5RDG'LHW,PSOHPHQWDWLRQ 5HVXOWLQJ&RQGLWLRQV 7UDYHO7LPHV &UDVK+LVWRU\ (YDOXDWLRQ0HWKRGRORJ\ 6DIHW\(YDOXDWLRQ 2SHUDWLRQV(YDOXDWLRQ (YDOXDWLRQ6XPPDU\ LIST OF FIGURES )LJXUH6WXG\$UHD )LJXUH7\SLFDO6HFWLRQ )LJXUH5RDG'LHW&URVV6HFWLRQ )LJXUH863RVW5RDG'LHW7UDQVIRUPDWLRQ QHDUHQGV )LJXUH863RVW5RDG'LHW7UDQVIRUPDWLRQ LQPLGGOH LIST OF TABLES 7DEOH7UDYHO7LPH6WXG\ 7DEOH7KUHH

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Figure 3: Road Diet Cross-Section

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Figure 4: US 27 Post-Road Diet Transformation (Near Ends with More Entrances)

Figure 5: US 27 Post-Road Diet Transformation (In Middle with Few Entrances)

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Table 2: Pre- Road Diet Three-Year Crash Summary (2005-2007) &UDVK7\SH 7RWDO 6LJQDOL]HG 0LGEORFN +HDG2Q %DFNLQJ 2SSRVLQJOHIWWXUQ 5HDUHQG 6LGHVZLSH2SSRVLWHGLUHFWLRQ 6LGHVZLSH6DPHGLUHFWLRQ 6LQJOHYHKLFOH 3HGHVWULDQ%LF\FOLVW 2WKHU Total 60 15 47 Table 3: Post- Road Diet Three-Year Crash Summary (2009-2010) &UDVK7\SH 7RWDO 6LJQDOL]HG 0LGEORFN +HDG2Q %DFNLQJ 2SSRVLQJOHIWWXUQ 5HDUHQG 6LGHVZLSH2SSRVLWHGLUHFWLRQ 6LGHVZLSH6DPHGLUHFWLRQ 6LQJOHYHKLFOH 3HGHVWULDQ%LF\FOLVW 2WKHU Total 19 1 18 7KHSULPDU\FUDVKW\SHDWERWKLQWHUVHFWLRQDQGPLGEORFNORFDWLRQVDQGERWKEHIRUHDQG DIWHU WKH URDGGLHW WUDQVIRUPDWLRQ LV UHDU HQGV 7KLV LV PDLQO\ DWWULEXWHG WR YHKLFOHV VORZLQJ WR WXUQ OHIW RU ULJKW $YHUDJH FUDVKHV SHU \HDU DUH XVHG IRU WKH FRPSDULVRQ VLQFH WKH WZR WLPH SHULRGV ZHUH QRW WKH VDPH 7KHVH DYHUDJHV VKRZDVLJQLILFDQW UHGXFWLRQLQFUDVKHVZLWKDGHFUHDVHLQWRWDOFUDVKHVGHFUHDVHLQUHDUHQGV DQGGHFUHDVHLQVLGHVZLSHV

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ROAD DIET CASE STUDY EVALUATION KY 1428 FLOYD COUNTY, KY (FINAL) REPORT Prepared by .HQWXFN\7UDQVSRUWDWLRQ&HQWHU

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Date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Figure 1: Study Area 7KLVUHSRUWVXPPDUL]HVWKHUHVXOWVRIWKHURDGGLHWRQ.<ZKLOHFRQFHQWUDWLQJRQ DVSHFWVVXFKDVWUDYHOWLPHVFUDVKUHFRUGVDQGVDIHW\$VZHOODVUHVXOWLQJFRQGLWLRQV IRUPHUFRQGLWLRQVZLOOEHGLVFXVVHG

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Figure 2: Initial Four Lane Section (North of KY 114)

Figure 3: Initial Two Lane Section (South of KY 114)

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Figure 4: Road Diet Cross-Section (North of 114)

Figure 5: Road Diet Cross-Section (South of 114) 2QH RI WKH PDLQ JRDOV RI WKH URDG GLHW ZDV WR LPSURYH VDIHW\ DORQJ ZLWK LPSURYLQJ HIILFLHQF\ 7KH WZRZD\ OHIWWXUQ ODQH SURYLGHV PRWRULVWV ZLWK D UHIXJH DUHD DQG UHPRYHV WKHP IURP WKH WUDIILF ZKLOH ZDLWLQJ WR FRPSOHWH WKHLU WXUQV &RQVWUXFWHG H[DPSOHVRIWKHUHVXOWLQJFRUULGRUFDQEHVHHQLQFigures 6 DQG Figure 7.

Figure 6: KY 1428 Post-Road Diet Transformation

Figure 7: KY 1428 Post-Road Diet Transformation (Transition from Two Lanes)

RESULTING CONDITIONS 7KLVVHFWLRQFRQWDLQVWKHUHVXOWVFRQFHUQLQJWUDYHOWLPHVDQGFUDVKKLVWRU\ Travel Times

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Table 2: Pre- Road Diet Three-Year Crash Summary (2002-2004) &UDVK7\SH 7RWDO 6LJQDOL]HG 0LGEORFN +HDG2Q $QJOH 2SSRVLQJOHIWWXUQ 5HDUHQG 6LGHVZLSH2SSRVLWHGLUHFWLRQ 6LGHVZLSH6DPHGLUHFWLRQ 6LQJOHYHKLFOH 3HGHVWULDQ%LF\FOLVW 2WKHU Total 115 17 98 Table 3: Post- Road Diet Three-Year Crash Summary (2007-2009) &UDVK7\SH 7RWDO 6LJQDOL]HG 0LGEORFN +HDG2Q $QJOH 2SSRVLQJOHIWWXUQ 5HDUHQG 6LGHVZLSH2SSRVLWHGLUHFWLRQ 6LGHVZLSH6DPHGLUHFWLRQ 6LQJOHYHKLFOH 3HGHVWULDQ%LF\FOLVW 2WKHU Total 52 12 40 7KHSULPDU\FUDVKW\SHDWERWKLQWHUVHFWLRQDQGPLGEORFNORFDWLRQVDQGERWKEHIRUHDQG DIWHU WKH URDGGLHW WUDQVIRUPDWLRQ LV UHDU HQGV 7KLV LV PDLQO\ DWWULEXWHG WR YHKLFOHV VORZLQJWRWXUQOHIWRUULJKW7KHGDWD¶V\HDUO\DYHUDJHVVKRZDVLJQLILFDQWUHGXFWLRQLQ FUDVKHV ZLWK D GHFUHDVH LQ WRWDO FUDVKHV GHFUHDVH LQ UHDU HQGV DQG GHFUHDVHLQDQJOHFROOLVLRQV

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Figure 4: US 127 Post-Road Diet Transformation

Table 2: Pre- Road Diet Three-Year Crash Summary (2003-2005) &UDVK7\SH 7RWDO 6LJQDOL]HG 0LGEORFN +HDG2Q %DFNLQJ 2SSRVLQJOHIWWXUQ 5HDUHQG 6LGHVZLSH2SSRVLWHGLUHFWLRQ 6LGHVZLSH6DPHGLUHFWLRQ 6LQJOHYHKLFOH 3HGHVWULDQ%LF\FOLVW 2WKHU Total 164 89 75

Table 3: Post- Road Diet Three-Year Crash Summary (2007-2009) &UDVK7\SH 7RWDO 6LJQDOL]HG 0LGEORFN +HDG2Q %DFNLQJ 2SSRVLQJOHIWWXUQ 5HDUHQG 6LGHVZLSH2SSRVLWHGLUHFWLRQ 6LGHVZLSH6DPHGLUHFWLRQ 6LQJOHYHKLFOH 3HGHVWULDQ%LF\FOLVW 2WKHU Total 97 36 61 7KHSULPDU\FUDVKW\SHDWERWKLQWHUVHFWLRQDQGPLGEORFNORFDWLRQVDQGERWKEHIRUHDQG DIWHU WKH URDGGLHW WUDQVIRUPDWLRQ LV UHDU HQGV 7KLV LV PDLQO\ DWWULEXWHG WR YHKLFOHV VORZLQJWRWXUQOHIWRUULJKW7KRXJKWKLVLVVWLOOWKHKLJKHVWW\SHRIFUDVKDIWHUWKHURDG GLHWLVLPSOHPHQWHGDVLJQLILFDQWUHGXFWLRQLQWKHQXPEHURIFUDVKHVLVQRWHG7KHGDWD VKRZVWKDWWKHUHDGHFUHDVHLQWRWDOFUDVKHVDUHGXFWLRQLQUHDUHQGVDQGD UHGXFWLRQLQVLGHVZLSHV

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5RDG'LHW&DVH6WXG\(YDOXDWLRQ .<0LGGOHVERUR.< APPENDIX A Existing Conditions

5RDG'LHW&DVH6WXG\(YDOXDWLRQ .<0LGGOHVERUR.<

APPENDIX B Traffic Volumes

5RDG'LHW&DVH6WXG\(YDOXDWLRQ .<0LGGOHVERUR.< 482 470 476 476 4

10 10 14, 2, 2 31, 9, 18

6 454 15 22 4 453 4 8

4 22nd 20 21st Street 44 20 th 500 476 9 10 33, 16, 25 3, 8, 4 6, 1 10 10 541 553 506 506 50

CODE 934 6 E STORE ITE CODE 935

ING ITE CODE 210 485 506 506 656

10 10 2, 1, 7 6, 39, 5

4 20 452 501 50 135 4

18 th 3 4 19 th 465 3

3, 3, 183

27, 26, 27 FITZPATRICK

10 10 506 471 471 655

49, 7, 13

30 563 4 15

4 120 521 15 th 38

18, 9, 17

10 679 551

6 29, 18,42 520

474 38 8 4

4 10 10 10 10 22nd 4 4 440 43 13 40, 19,23 496

500

21st Street 8, 10,26 489 508 460 30 24 429 18 42

69, 24,48 489 514

20 th 11, 3 5

505 18, 64,4 541

19 th 93, 69,69 508 502 430 58 14

494 10 4

9, 4,27 508 502

18 th 2, 14, 185 2, 14,185 706 667 491 148 28

4 4 10

10 FITZPATRICK 0

4 4 562 118 50 110, 10, 34

730

15 th 31, 23,19 615 547 502 15 30

0 55, 34,15 678

597 55 26 9

9 5 5 22nd 9 9 725 34 12 13, 11,30 771 686

21st Street 14, 10,40 795

659 26 33

717

48 30

71, 30,60 795

20 th

10, 3 81 7

7, 69,12 712

19 th 99, 82,81 703

606 12 85

560 242 20

6, 4,33 822 703

18 th 10, 326 919 697 687 3 7

9 9 5

5 FITZPATRICK 9 768 125 10

45, 28,45 903

15 th 56, 17, 27 56, 17,27 840

612 27 55

APPENDIX C Crash Diagrams

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APPENDIX B 5RDG'LHW*XLGHOLQHV

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