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   "layerName": "PointMarkings",
   "layerType": "Feature Layer",
   "minScale": 24000,
   "maxScale": 0,
   "legend": [
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     "url": "acb06be7ad02ed285947ee735bd0effa",
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     "label": "RPM TYPE 1 (TWO WAY YELLOW)",
     "url": "290f226759332b2313f1699face65c54",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAYCAYAAAD6S912AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAyElEQVQ4jWNhgIBlDAwMkQzkg7sMDAwnGRgYolmgApJaahCGhTFpJh06wcBw5z6DMgMDw2MQH2Yg3KCWCtIMzK8BGwgHcAOpBVhGDaQYsIxgA7fthdDXbjEw/P8PYcNoGADxwUIwmoGB4cEjHAa+eIVK4wOMjAwMjDBLGHAYmBAOoZvLEZpgumCawWJYst7qzVgMZGKC0MzMDCMllkeggXegpe7qTaQZ8OAJDgOpBWAGvjp8AsI4DKq7SADQ7PmQgYHhJbKBVAMA/Nwvvsa0NoIAAAAASUVORK5CYII=",
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    },
    {
     "label": "RPM TYPE 3 (RED & WHITE)",
     "url": "1a0cf65e43453be5c2dc86c933ee3e56",
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     "groupId": "0",
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     "values": [
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    },
    {
     "label": "STRAIGHT & LEFT ARROW (TYPE 3)",
     "url": "78677dfe6423881e1d3c7db04d86f8f0",
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    },
    {
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