Freeway or Expressway?

[Michael in Philly]

a better question would be "Highway" or "Route".  Being born in Wisconsin, i use Hwy up there but living in Chicagoland, i use Rte here.  For example.  IL 83 and WI 83 is the same road near Antioch IL.  I always refer to it as Route 83 regardless of the state.  But, US 45 also runs in the area and i always refer to that as Highway 45.
as to the original question, unless talking about a specific name, ie the Stevenson Expy., i use freeway more than expressway because there are tollways here. 

!!  See, I'm not the only person who thought freeway meant toll-free.

[Dr Frankenstein]

I roughly assumed so but did not strongly believe that.

[Bickendan]

a better question would be "Highway" or "Route".  Being born in Wisconsin, i use Hwy up there but living in Chicagoland, i use Rte here.  For example.  IL 83 and WI 83 is the same road near Antioch IL.  I always refer to it as Route 83 regardless of the state.  But, US 45 also runs in the area and i always refer to that as Highway 45.
as to the original question, unless talking about a specific name, ie the Stevenson Expy., i use freeway more than expressway because there are tollways here. 

Here in Oregon, there is a definite difference between 'Highway' and 'Route' per definition. The external, signed system are 'Routes', and the internal system that ODOT uses are 'Highways'.

To add to the confusion, the signed routes often are called highways because of their names (OR 18 - Salmon River Highway; OR 47 - Tualatin Valley Highway and Nehalem Highway; OR 8 - Gales Creek Rd, Tualatin Valley Highway and SW Canyon Rd), and the interstates themselves are referred to as highways outside of the urban areas, not freeways (I-5 Pacific Highway, I-84 Columbia River Highway; Old Oregon Trail [Highway]), while from Salem to Portland, I-5 is the Baldock Freeway, the Eastbank Freeway and the Minnesota Freeway (with a personal preference to calling it N Minnesota Ave, for the surface street it largely replaced); I-84 the Banfield Freeway (Expressway occasionally creeping in); I-205 the East Portland Freeway or War Veterans Memorial Highway; I-405 the Stadium Freeway.
The freeway portion of US 26 is simply the Sunset Highway, which is just a continuation of the non-freeway portion to the west. OR 217 is the Beaverton-Tigard Freeway. I-105 (and OR 126) in Eugene-Springfield is the Eugene-Springfield Freeway, while OR 569 (virtually all freeway for its length) is Beltline Road.

TLDR version: In Oregon, Freeways or Expressways? Highways. Highways or Routes (system descriptors)? Routes.