Interstate 48 (character)

Interstate 48 (I-48) is a protagonist in the Sintopia animated television series Intertropolis & Routeville. She is a female Interstate Highway shield who is a girlfriend of U.S. Route 86. Unlike US 86, USI-48 has the bright side of things while US 86 has the serious side. She is very good at coming up with ideas, but sometimes her ideas doesn't work the way she thought they would, which annoys US 86, who suggests her to think steadily and come up with smart ideas.

Biography
I-48 is about the same age as her boyfriend US 86, at 20 years of age. She is younger than US 86. I-48 and US 86's birthdays are six months (a half year) away. Despite her age, she is still a bit childish, but is working on coming up with her maturity, which is slowly working in the process. She lives in Intertropolis, Nevada with her roommate US 86.

Personality
I-48 is a hyperenergetic adult Interstate Highway sign and despite her 20-year-old age, she can become a little immature when fun things come, which bothers US 86 a lot. She has a bright side of things and is very optimistic. She loves her roommate boyfriend US 86 and she really loves music and meeting new people. What I-48 dislikes is police officers like Officer Interstate 38. This was revealed in the episode "Interstate Workers", when I-48 and US 86 become temporary construction workers for community service to get enough money to get their car out of the impound lot. In the episode "Interstate Highways Are Not Racetracks", I-48 and US 86 wants to help all the police officers catch a criminal high-speed chasing on Interstate 248, which changed I-48 and US 86's rate of hate against police officers. What she also dislikes is plain cereal, which was mentioned in the episode "Beating the Highwayve", when the refrigerator has stopped working due to the intense excessive heatwave that has been exasperating the citizens of Highway City and therefore causing a metro-wide power outage.