51-Sec 32 17 23.13 - Painted Traffic Lines and Markings.pdf

PAINTED TRAFFIC LINES AND MARKINGS

32 17 23.13-1

SECTION 32 17 23.13

PART 1 - GENERAL

1.01 DESCRIPTION OF WORK

A. This Work is the application of traffic lines and markings.

PART 2 - PRODUCTS

A. Materials used shall be in accordance with Section 962 of PennDOT Publication 408.

PART 3 - EXECUTION

3.01 GENERAL

A. Apply in accordance with 67 Pa Code, Chapter 212, Subchapter C.

3.02 APPLICATION

A. Surface Preparation:

Clean and dry roadway surface at the direction of Engineer. Blow or sweep any loose dirt or debris from the roadway.

B. Temperature Restrictions:

Do not apply any type of pavement markings when the temperature is below 40F.

C. Line Application:

Use a machine that is capable of:

1. simultaneously applying two 4-inch parallel lines, in either solid or broken patterns or various combinations thereof;

2. automatically dispensing glass beads onto the painted surface, at the required application rate, by pressurized glass-gun method; and

3. automatically and continuously measuring the length of each line placed to the nearest foot.

D. Legend Application:

This includes crosswalks, intersections, stop lines, and other miscellaneous items. Legend application shall not be performed with hand brushes or rollers. Glass beads may be hand applied.

E. Application Rates:

1. Paint: Dispense in a wet film thickness of 15 mils, except at edge which may be 12 mils.

2. Glass Beads: 6 pounds per gallon of paint.

32 17 23.13-2

F. Protection of Painted Surfaces:

1. Type I Conventional Traffic Paint: Provide satisfactory protection for center lines, lane lines, edge lines, crosswalks, stop bars, symbols and legends for at least 30 minutes or until paint is dry and track free from vehicular traffic.

2. Type II Low Heat Traffic Paint: Provide satisfactory protection for center lines, lane lines and edge lines until the paint is dry and track free from vehicular traffic.

3. Repaint marked or damaged areas as directed by Engineer.

G. Centerline Application:

1. Where existing centerlines are visible and properly located, apply directly over existing pattern.

2. Where centerlines do not exist or are improperly located, apply at the correct location, as determined by Engineer. Remove the improperly placed markings as directed by Engineer in accordance with Section 963 of PennDOT Publication 408.

3. On two-lane roadways, evenly divide the roadway. If a portion of the roadway on either or both sides is utilized for parking, evenly divide the traveled way.

H. Edge Line Application:

Field check and paint roadway sections which are 20 feet or greater in width for more than 50% of their length as directed by Engineer.

I. Defective Work:

Remove any traffic markings which are incorrectly placed as directed by Engineer.

END OF SECTION