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or improved traffic control devices; or other such improvements may be required in order to maintain Level of Service standards. Accel and de -el lanes which are required shall be funded by the applicant. The appli- caht may be required to fund and/or install other necessary improvements or provide a legal assurance, such as a performance bond or other surety approved by the County Attorney, prior to the issuance of a build- ing permit. g. Timing of Traffic Impact Analysis: Relationship to Site Plan A royal. An applicant may receive site plan approval prior to the completion of the traffic impact analysis on the condition that the applicant will comply with the findings of the Public Works Director. h. Traffic Impact Analysis File. The Public Works Director shall maintain a file of all traffic impact analyses, including the data and methodology utilized. The County shall provide information and data, when available, in order to prevent duplication of efforts and unnecessary costs. 3. Paved Road Requirements. (RESERVED) 4. Intersection Design. The following location and design criteria shall apply to inter- sections: a. Acceleration, deceleration and/or turning lanes shall be provided by the applicant at intersections of arterial or collector routes if projected traffic entering the site equals or exceeds sixty (60) vehicles in the peak hour or one thousand (1000) vehicles per day for right turn and/or left turn movements. b. The first point of access to a marginal access road from a primary collector or arterial street shall be at least three hundred thirty (330) feet frc,7 the intersecting right-of-way lines of arterials shown on the Indian River County Thor- oughfare Plan with subsequent intervening access points being at least six hundred sixty (660) feet from the inter- secting right-of-way lines, unless otherwise approved by the Public Works Director and the Planning and Development Director. C. Median access points on arterial roads shall be allowed only at intersections of other arterial roads, collector roads or marginal access roads. Deceleration lanes may be required. Additional access points may be permitted if deemed neces- sary by the Public Works Director. d. On any arterial or primary collector road, the required road right-of-way width may be increased by up to twelve (12) feet, if deemed necessary by the Public Works Director, within two hundred fifty (250) feet of the intersection with another arterial or primary collector in order to facilitate proper intersection design or improvements. 5. Intersection Radii. a. At intersections, rights-of-way shall be joined by arcs tangent to the right-of-way lines and having a radius of at least twenty-five (25) feet. -18-