Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - How my (GPS) navigator helps me in eco-driving

groar · 10-13-2008, 04:16 PM

This morning I scheduled my commute later so no traffic jam

Tonight while I'm waiting for the RDS-TMC to receive the info traffic, I fall in a slow traffic

After a few minutes I look at received informations and none is, which is strange as commonly only 2 minutes are needed. After further inspections, the system is locked on another channel than the usual one. I manually configure the channel and quickly receive dozens of traffic problems... the navigator announces me a 14 minutes delay.

I ask the navigator to optimize the road. It gives me the choice between "the quickest road" and "the quickest road without traffic". I choose the latter, the navigator announces me a 4 minutes longer road than the initial one and I begin to carefully follow the new road...

Alas the new road is in city and I have to play with city traffic and lights, game that I don't really appreciate...

Finally I arrive with a 16 minutes delay... This is explained by the fact the navigator doesn't know about in city slow traffic which isn't reported as traffic problem, so it often underestimate the in-city roads.

Thanks to Scenic on-board computer I estimated my consumptions :
. to work = 56 mpg (37 mph) : ~C.EPA +40%

. from work = 41 mpg (16 mph) : ~C.EPA

ie +36% gas

Conclusion :
. I shall verify the channel on which the navigator is locked to receive RDS-TMC
. I shall avoid in-city roads if they doesn't permit a very big gain
. I should work more my in-city eco-driving skills...

Denis, on the road to skyrocket Scenic's logs

10-13-2008, 04:16 PM	#3 (permalink)
groar X-Frenchy: very Join Date: Jun 2008 Location: Toulouse, France Posts: 595 scenic - '01 renault scenic 90 day: 43.09 mpg (US) megane - '97 renault megane classic Diesel 90 day: 72.53 mpg (US) dennisius - '06 Toyota Prius Team Toyota 90 day: 69.27 mpg (US) Thanks: 9 Thanked 34 Times in 23 Posts	This morning I scheduled my commute later so no traffic jam Tonight while I'm waiting for the RDS-TMC to receive the info traffic, I fall in a slow traffic After a few minutes I look at received informations and none is, which is strange as commonly only 2 minutes are needed. After further inspections, the system is locked on another channel than the usual one. I manually configure the channel and quickly receive dozens of traffic problems... the navigator announces me a 14 minutes delay. I ask the navigator to optimize the road. It gives me the choice between "the quickest road" and "the quickest road without traffic". I choose the latter, the navigator announces me a 4 minutes longer road than the initial one and I begin to carefully follow the new road... Alas the new road is in city and I have to play with city traffic and lights, game that I don't really appreciate... Finally I arrive with a 16 minutes delay... This is explained by the fact the navigator doesn't know about in city slow traffic which isn't reported as traffic problem, so it often underestimate the in-city roads. Thanks to Scenic on-board computer I estimated my consumptions : . to work = 56 mpg (37 mph) : ~C.EPA +40% . from work = 41 mpg (16 mph) : ~C.EPA ie +36% gas Conclusion : . I shall verify the channel on which the navigator is locked to receive RDS-TMC . I shall avoid in-city roads if they doesn't permit a very big gain . I should work more my in-city eco-driving skills... Denis, on the road to skyrocket Scenic's logs __________________ Save money & CO2 at home : http://ecorenovator.org/ Created and managed by the creators of http://ecomodder.com/ --- Earth and health are priceless, so are kilotank and AT-PZEV Best Mégane tank: 1268.9mi @ 77.847 MPG(US) 2008/06-2011/10 saving: 5725.5 kg CO2 (5342.6+382.9) Diesel / Money: 42.17% = 2446.25€ = 3357.26$ --- megane : thread - kill switch.