January 21, 2019

Division Nine - Standards for Traffic Engineering - Chapter VI. Signing, Striping & Marking

Chapter VI. Signing, Striping & Marking

Sec. 906-1 Introduction

The County shall provide all new and revised signing, striping, marking and other channelization necessary except as noted in Section 903. However, design of all new and revised signing, striping, marking and other channelization shall be provided by the project’s Engineer and comply with the standards established in the State of California and detailed in the California MUTCD.

These requirements are intended to supplement and clarify the requirements contained in the California MUTCD and the CalTrans Standard Plans and Specifications, latest edition.

The associated details, special provisions and these requirements are to be used as a general standard for developing signing & striping plans. Specific situations may require special consideration. 

Sec. 906-2 Design Requirements

906-2.01 Signing & striping plans shall show the proposed signing, striping and markings within the limits of the project. It shall also show existing signing and striping in and beyond the project limits as needed to determine proper transition.

909-2.02 Depending upon the location involved, various methods for dividing traffic may be available or appropriate. These include: a yellow skip stripe, double yellow stripe, double-double yellow stripe (painted median) and two-way turn lane stripe. The Traffic Engineer shall have final determination as to which method is used.

909-2.03 Paint shall conform to Section 84 of the Caltrans Standard Specifications, unless another treatment is allowed.

906-2.04 Existing stripes shall be removed, where necessary. Removal shall be in accordance to Section 15 of the Caltrans Standard Specifications.

906-2.05 Provisions shall be included to have the Inspector review the "Rabbit Tracked" layout in the field prior to final striping. Field adjustments may be needed.

906-2.06 It is the responsibility of the project's Engineer to review the road work to be done with relationship to maintaining existing traffic. If the project's Engineer determines a detour is needed then a detour plan shall also be included. If no detour plan is provided but the Inspector finds that one is necessary during construction then the project's Engineer shall provide such a plan at that time and no work shall progress until such plan is approved.

906-2.07 Figures T-12 and T-13 detail typical striping plans, which cover most of the common striping situations encountered. Striping plans shall be designed to provide the total number of lanes for ultimate full width improvements whenever possible. Specific projects may require special treatment to match existing conditions. (e.g. - dropping a lane or forcing the outside lane to turn at an intersection, providing only 2-lanes each way on a 6-lane arterial, moving lanes over due to 1/2 width improvements, etc.)


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