Caltrans I80 update

[Marc MERLIN]

Update in from https://roads.dot.ca.gov/ : 2020:04:06 08:51

Change since last update http://marc.merlins.org/snow/roadinfo/i80/i80.2020:04:06-08:51.diff :
+**FOR EASTBOUND TRAFFIC: CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW TIRES ON ALL 4 WHEELS FROM CISCO GROVE TO TRUCKEE (PLACER CO)
+**FOR WESTBOUND TRAFFIC: CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW TIRES ON ALL 4 WHEELS FROM TRUCKEE TO 4.7 MI WEST OF KINGVALE (PLACER CO)

New state from https://roads.dot.ca.gov/ saved at http://marc.merlins.org/snow/roadinfo/i80/i80.2020:04:06-08:51
[IN THE SAN FRANCISCO BAY AREA - SOLANO CO] NO TRAFFIC RESTRICTIONS ARE REPORTED FOR THIS AREA.
[IN THE NORTHERN CALIFORNIA AREA & SIERRA NEVADA] CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW TIRES ON ALL 4 WHEELS FROM NYACK (PLACER CO) TO THE NEVADA STATE LINE
**FOR EASTBOUND TRAFFIC: CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW TIRES ON ALL 4 WHEELS FROM CISCO GROVE TO TRUCKEE (PLACER CO)
**FOR WESTBOUND TRAFFIC: CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW TIRES ON ALL 4 WHEELS FROM TRUCKEE TO 4.7 MI WEST OF KINGVALE (PLACER CO)
WORKING TO UPDATE CHAIN CONTROL DESCRIPTIONS FOR CONSISTENCY WITH INTERNET MAPPING, LIKE GOOGLE MAPS & MAPQUEST. 

Main page with google maps of Caltrans reporting points:
http://marc.merlins.org/snow/tahoe_caltrans.shtml