East Kings Highway and Roberts Avenue Speed Hump Analysis BOROUGH OF HADDONFIELD, CAMDEN COUNTY, NEW JERSEY 5/18/2018 Prepared By: Remington & Vernick Engineers 232 EAST KINGS HIGHWAY, HADDONFIELD, NEW JERSEY 08033 O. 856.795.9595
Contents Purpose... 1 Existing Conditions... 1 Design Standards... 1 Findings... 3 Conclusion... 4
Purpose This report was prepared to determine if a speed hump, at the intersection of Roberts Avenue and Kings Highway East (Temporary State Route 41 and Camden County Route 573) is permitted under current New Jersey statues. Existing Conditions Roberts Avenue is local road owned and maintained by the Borough of Haddonfield. Kings Highway East (Temporary State Route 41 and Camden County Route 573), is Camden County owned and maintained road. Design Standards New Jersey Statute Title 39 Motor Vehicles and Traffic Regulation are presented below. C.39:4-8.9 Definitions relative to speed humps. 1. As used in this act: "Department" means the Department of Transportation. "Private roads" means semipublic or private roads, streets, driveways, parkways, parking areas, or other roadways owned by a private person, corporation or institution open to or used by the public for the purposes of vehicular travel by permission of such persons, corporations or institutions and not as a matter of public right. "Speed hump" means one of several traffic calming measures which use forces of vertical acceleration to discourage speeding. For purposes of this chapter, speed humps means all vertical speed deflectors, including but not limited to, speed tables, raised crosswalks, raised intersections, and modified speed humps. "Vertical speed deflector" means a raised area in the roadway pavement surface extending transversely across the travel way. L.2004, c.107, s.1; amended 2008, c.110, s.4. 1
39:4-8.10 Construction of speed humps, traffic calming measures by municipality, county. 2. a. Pursuant to the provisions of section 3 of P.L.2004, c.107 (C.39:4-8.11), a municipality or county may, without the approval of the commissioner, construct a speed hump on two-lane residential streets and on one-way residential streets under municipal or county jurisdiction with a posted speed of 30 mph or less and which have fewer than 3,000 vehicles per day. The board of directors of any corporation, or the board of trustees of any corporation or other institution of a public or semipublic nature not for pecuniary profit, having control over private roads, may construct or provide for the construction of a speed hump on any private road subject to the provisions of Title 39 of the Revised Statutes, pursuant to P.L.1945, c.284 (C.39:5A-1 et seq.). b.pursuant to the provisions of section 3 of P.L.2004, c.107 (C.39:4-8.11), a municipality or county may, without the approval of the commissioner, construct traffic calming measures where appropriate, which may include, but are not limited to, speed humps on streets under municipal or county jurisdiction with a posted speed of 30 mph or less and which have fewer than 3,000 vehicles per day when any road construction project or repair of a street set forth in this subsection is undertaken and located within 500 feet of that street is a school or any property used for school purposes. c.prior to a municipality or county constructing a speed hump which places any impact on roadways in an adjoining municipality or county, the governing board or body of the municipality or county shall provide appropriate notice to the adjoining municipality or county. d.prior to a municipality or county constructing a speed hump which places any impact on a State roadway, the county or municipality shall obtain the approval of the commissioner L.2004, c.107, s.2; amended 2005, c.221; 2008, c.110, s.5. C.39:4-8.11 Conformance of speed humps to DOT standards. 2. Any speed hump constructed by a municipality or a board of directors or trustees shall conform in design and construction to the technical standards established by the Department of Transportation. A municipality or board shall provide advance warning, including but not limited to, the erection of appropriate signs giving notice of the presence of speed humps before the first speed hump in a series of speed humps and provide for a pavement marker to be placed at the location of the first speed hump. The signing and pavement markings for a speed hump shall conform to the current standards prescribed in the Manual of Uniform Traffic Control Devices for Streets and Highways as adopted by the Commissioner of Transportation. L.2004,c.107,s.3. 2
Findings The New Jersey Department of Transportation has adopted the engineering practices recommended for speed humps in the manual entitled, Guidelines for the Design and Application of Speed Humps: Recommended Practice of the Institute of Transportation Engineers published by The Institute of Transportation Engineers (ITE). The aforementioned publication indicates that speed humps should not be installed within intersections or driveway. Speed humps should only be constructed to address documented safety or traffic concerns supported by traffic engineering studies, as indicated by ITE. For single short blocks (300 feet to 500 feet), a single speed hump positioned near mid-block would likely provide satisfactory speed control for the roadway segment. The U.S. Department of Transportation, Federal Highway Administration, recommends speed humps should be located a minimum distance of 150 feet from an unsignalized intersection. Speed humps are located away from street intersections to allow the vehicle to encounter the speed hump perpendicularly. Placing speed humps on horizontal curves (at intersections) increase the risk of the driver losing control, of a vehicle, because the vehicle will not approach perpendicular to the speed hump. Based on the New Jersey Department of Transportation s Straight Line Diagram (SLD) of New Jersey State Route 41, the average daily traffic volume was noted to be 8,673 vehicles per day (2012). A copy of the SLD is presented on the following page. 3
NJ 41 (South to North) Mile Posts: 8.000-11.000 657 551S 641 656 Secondary Direction 561 644 70 Primary Direction 669 628 757 3076 757 154 Pavement 24 36 Shoulder 12 Number of Lanes 2 3 2 Speed Limit 40 45 Interstate Route US Route NJ Route County Road Interchange Number Grade Separated Interchange Traffic Signal Traffic Monitoring Sites Road Underpass Road Overpass Street Name 287 22 33 689 2 WIM AVC VOL Secondary Direction Primary Direction (8.02) MARQUIS RD BELLEVUE AVE (8.04) 656 551S 641 S HINCHMAN AVE (8.13) (8.11) HICKORY LN (8.19) JEFFERSON AVE (8.26) MOUNTWELL AVE STATION AVE (8.34) (8.35) SUMMIT AVE (8.55) KINGS HWY (8.59) W. END AVE Haddonfield Boro, Camden Co (8.68) ESTAUGH AVE WARWICK RD (8.75) 669 (8.79) LINDEN AVE (8.83) WASHINGTON AVE (8.85) PATCO (8.94) CHESTNUT ST TANNER ST (8.99) Haddonfield Boro, Camden Co MECHANIC ST (9.06) 561 (9.12) HADDON AVE (9.16) FRIENDS AVE (9.22) COLONIAL AVE 644 (9.28) GROVE ST POTTERS ST (9.27) 561 644 EVERGREEN LA (9.36) (9.45) SYLVAN LAKE AVE (9.42) KINGS LA ROBERTS AVE (9.43) 8.0 9.0 10.0 11.0 (9.55) MOREHOUSE LA HOPKINS LA (9.59) NNP (9.58) (9.70) EVANS MILL RD (9.67) PRIVATE RD (9.61) LEE AVE 757 (9.74) (9.74) (9.74) COOPERS CK 628 (9.80) PARK BLVD 628 (9.92) OXFORD ST ENT. TO APT (9.89) (9.87) MUNN AVE (9.94) NEWELL AVE (10.00) BEL AIRE AVE (10.06) QUEENS PL (10.07) PLYMOUTH RD (10.13) WINDING WAY CALDWELL RD (10.17) Cherry Hill Twp, Camden Co (10.21) CHURCHILL RD (10.31) LITTLE TIMBER CK UTAH AV (10.37) (10.43) MONTANA AV (10.49) NEVADA AV Cherry Hill Twp, Camden Co Street Name Chews-Landing Road Kings Highway 41 Connector (10.57) OLD RT. 41 (10.54) OREGON AV Kings Highway BRACE RD (10.68) 154 70 MARLTON (10.83) 70 TNPK TO SHOPPING CTR (10.94) Kings Highway Jurisdiction County N.J.D.O.T. Functional Class Urban Minor Arterial Urban Principal Urban Minor Arterial Arterial Federal Aid - NHS Sy STP NHS STP TO SHOPPING CTR FROM SHOPPING CTR Units in miles (10.98) UNNAMED RD Control Section 0409 0410 Speed Limit 25 40 45 Number of Lanes 2 3 2 4 5 Med. Type None Curbed None Med. Width 0 VAR 0 Pavement 24 40 50 28 24 60 48 60 Shoulder 6 0 14 8 12 0 12 Traffic Volume 13,035 (2013) 8,673 (2012) Traffic Sta. ID 7n5h709 7-4-361 Structure No. 0459164 004D009 004D010 Enlarged Views SRI = 00000041 Date last inventoried: April 2014 Page Created: June, 2015
Conclusion Since the average daily traffic volume (8,673), along East Kings Highway, exceeds the maximum daily traffic volume (3,000) permitted and East Kings Highway is temporary State route, the construction of a speed hump, across East Kings Highway, is not permitted based on New Jersey statue: 39:4-8.10 Construction of Speed Humps, Traffic Calming Measures by Municipality, County. Since the recommended distance, for a speed hump, is 150 feet from an unsignalized intersection, a speed hump should not be installed across Roberts Avenue, at the intersection with East Kings Highway (The U.S. Department of Transportation, Federal Highway Administration) 4