CRFQ DMT2700000001 Attachment A Spiking Pattern.pdf

This document is a technical specification attachment for a railroad track spiking pattern guide used by the State of West Virginia for rail maintenance operations on the SBVR (likely a state-owned railroad). The attachment outlines five distinct spiking patterns (A through E) that specify the type and number of spikes required for different track conditions based on track location, curvature degree, and operating speed. Pattern A applies to main tracks and tangents with curves less than 2 degrees at speeds up to 45 mph, requiring 2 spikes. Pattern B covers the same track type with curves less than 2 degrees but at speeds greater than 45 mph, requiring 3 spikes. Pattern C addresses curves between 2 and 6 degrees, requiring 4 spikes. Pattern D applies to curves over 6 degrees, requiring 5 spikes. Side tracks operating at speeds up to 25 mph are governed by patterns that range from 2 to 3 spikes for tangents and curves, while side tracks operating at speeds greater than 25 mph require between 2 and 4 spikes depending on curve severity. The document includes technical definitions distinguishing between main tracks, where trains operate according to rules or special instructions; sidings, designated for meeting or passing trains; and auxiliary tracks used for other purposes.

The spiking patterns serve as a quality control and safety standard for the replacement of 4,000 ties on the SBVR, ensuring proper track gauge installation and structural integrity. No pricing information, bidding dates, award dates, or contract terms are specified in this technical attachment, as it functions purely as an operational specification for bidders to follow during track maintenance execution.