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Iowa/Major roads/Main

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=== Functional Class ===
You will hear the phrase Functional Class or FC a lot when it comes to the standard for [[Road_Types_(USA)Road types#Importance_of_road_typesImportance of road types|road types]]. According to the [http://www.fhwa.dot.gov/planning/processes/statewide/related/highway_functional_classifications/fcauab.pdf US Federal Highway Administration], The concept of functional classification defines the role that a particular roadway segment plays in serving the flow of traffic through the network. Waze has its own interpretation of this system, but it utilizes the state's functional class map to help determine the road type to use.
Check out our [[Iowa#Mapping_resources|Mapping Resources]] for knowledge on how to use the state's map system to find Functional Classifications Standards in Iowa. From that knowledge, use [[Road_types/USARoad types#Quick_reference_chart|this chart]] to determine how the road should be classified using the Waze Standard. Iowa follows this chart completely aside from [[Minnesota#Dirt_Roads|dirt or gravel]] roads in rural areas. This exception will be changed as soon as an unpaved road option exists in Waze.
If you have any questions about Functional Class, please use our [[Iowa#Community|Community ResoursesResources]] to reach out to gain further information.
Below is a list of the six major road types. If you click on the button of the road type, for instance [[Road_Types_(USA)Road types#Freeway|{{Freeway}}]], you will be directed to a Wiki section that discusses the road type further.
==== Freeway [[Image:RoadBlue.png|180px]] ====
A [[Road_Types_(USA)Road types#Freeway|{{Freeway}}]] is the highest functional class of road. It is designed for higher speeds and limited to entrance and exits ramps being the only way to enter or exit this type of road.
[[File:PaI-interstateMN80_(IA).png|150px|left]][[File:I35mn.png|100px175px|right]][[File:I94fcmnIowa_FFC_Freeway.png|150px250px|left]]Any road with the Functional Class (FC) as Principal Arterial Interstate, colored blue on the FC map, will be considered a Freeway. All [http://en.wikipedia.org/wiki/List_of_Interstate_Highways_in_Minnesota#Minnesota_Interstates Interstate Roads] Will be freeways aside from Business Loops and Spurs (Which instead will be a Major Highway). Also, watch for some roads that are Principal Arterial - Other or Other Freeways (colored red or orange) as they could fit the profile of a Freeway. All roads that have to be entered or exited using a ramp, where 3 or more consecutive exits occur, needs to be set as a freeway. A Freeway will end at first direct connection of a road to the highway.
===== Naming =====
# Freeways will usually only be named the Highway number of the most prominent highway of the section. For instance, If a highway is a State Highway connected with a US highway, then it will be named the US highway.
# If two of the same type connect such as a US highway and another US highway, then the road that stayed on course will be the named highway.
# All highway numbering will be as follows: Interstate: I-XXX, US Highway: US-XXX, Minnesota Iowa State Highway: MNIA-XXX, County Highway: CHCR-XXX. Notice that there are no spaces between the dashes. The only exception to using the Highway Number would be if there is clear signage that the freeway is known by another name.
==== Ramps [[File:Ramp.png|200px|Ramp.png]] ====
A [[Road_types/USA#Ramps|{{Ramp}}]] will connect two roads together; however, it will not be used for a simple [[At-grade_connectors#Road_type|At-grade connector]] or in other words a road that doesn't have a different elevation level. There are some [[At-grade_connectors#Exceptions|exceptions]] to this rule to understand.
===== Naming =====
# For all Numbered exits, it will start with "Exit XX:" For example, if the Exit is number 114A then you will start the exit name as "Exit 114A:" and there will always be a colon after the exit number
# For non-numbered exits, just start the exit as such, "to" For example, if the exit was to US Highway 169 Northbound, then the exit would be "to US-169 N"
# All numbered highways need to be typed as such: Interstate: I-XXX, US Highway: US-XXX, Minnesota Iowa State Highway: MN-XXX, County Highway: CHIA-XXX, County Road: CR-XX XXX all with no spaces between the Highway type and the number.
# Include as much information in the sign as possible. For example, If the actual sign shows it will take you to County Highway 1 Eastbound and it also takes you to Riverview Rd and Old Shakopee Rd, then the ramp needs to be labeled: "to CH-1 E / Riverview Rd / Old Shakopee Rd" using the slash "/" to separate the different roads to take. Try to match the sign as close as possible.
# If a road splits showing arrow marking under lanes to of which to stay on to continue your course, use ramps for each side. For example: in Burnsville, a person taking I-35 N will have the decision to take I-35W N or I-35E N. The I-35W side is a numbered exit, the other side is just a guided direction to head towards I-35E N. The one side is labeled: "Exit 88A: I-35W / Minneapolis" and the other side is just labeled: "to I-35E / St. Paul". Using ramps here will guide the driver to the right side of the highway.
==== Major Highway[[Image:Majorhighwayseg.png |200px]] ====
A [[Road_Types_(USA)Road types#Major_HighwayMajor Highway|{{Major Highway}}]] is a primary route for traveling throughout the country, from one city to another, over long distances.
[[File:Pa-othmnFCUS_20.png|150px|left]][[File:US 169 (MN).png|100px175px|right]][[File:Paother169mnfcIowa_FFC_MH.png|150px250px|left]]
Any road with the Functional Class (FC) as Principal Arterial - Other (Freeways), colored red or orange on the FC map, will be a Major Highway (MH) if these roads do not fit the standard definition of a Freeway. All [http://en.wikipedia.org/wiki/List_of_U.S._Highways_in_Minnesota#U.S._Highways US Highways] (Such as US-169) will be labeled as a Major Highway regardless of what the FC map shows unless it can be labeled as a freeway.
===== Naming =====
# Naming of a major highway typically will be in the road number standard: US Highway: US-XXX, Minnesota Iowa State Highway: MN-XXX, County Highway: CHIA-XXX, County Road: CR-XXX; however, pay close attention to the way the signage really is in these areas.
# In town, these highways need to be named as the street names used for house numbering.
# Out of town, should be labeled the same as the street name for house numbering if looking at a 2 lane highway
==== Minor Highway[[Image:RoadYell.png |200px]] ====
A [[Road_types/USA#Minor_Highway|{{Minor Highway}}]] is a secondary route for traveling between cities over moderately long distances.
[[File:MnfcmaCircle_sign_1.png|130px|left]][[File:MN13sign.png|100px175px|right]][[File:Mnfcmamn13Iowa_FFC_m_H.png|130px250px|left]]
Any road with the Functional Class (FC) as Minor Arterial, colored as green on the FC map. will be a Minor Highway (mH). Also, all [http://en.wikipedia.org/wiki/List_of_Minnesota_state_highways#List_of_highways State Highways] (such as MN-13) will be set at a minimum of a minor highway regardless of the current FC classification from the State of Minnesota Iowa unless it is a higher classification or could be considered a freeway.
===== Naming =====
# Naming of a minor highway typically will be in the road number standard: Minnesota Iowa State Highway: MN-XXX, County Highway: CHIA-XXX, County Road: CR-XXX; however, pay close attention to the way the signage really is in these areas. # In a town or city, the naming will typically be the street name unless the name of the street is Co Hwy XX Rd XXX where we would change it to CHCR-XXXXX
# Pay close attention to the name assigned for house numbering. If house numbering suggests using the wording, "State Highway XXX", we need to set the name of the road as such.
==== Primary Street [[Image:Primary street.png|200px]] ====
A [[Road_types/USA#Primary_Street|{{Primary Street}}]] is a road used with medium-low traffic densities which are used to bring traffic from local streets to arterials and vice versa
[[File:MnfcmcHumboldt_County_Route_C29_(IA).png|130px|left]][[File:Mncr81.png|100px175px|right]][[File:MnfccoIowa_FFC_PS.png|130px250px|left]]Any road with the Functional Class (FC) a Major or Minor Collector, colored as purple or yellow on FC map, will be a Primary Street (PS). Also, pay attention to any paved [http://en.wikipedia.org/wiki/County_roads_in_Minnesota#Lists_of_county_roads_in_Minnesota county road] as these will have a minimum of a Primary Street. Most frontage roads will have this category as well even if the FC map shows a lower level (but reach out for clarification for the ones that are not a county road). If you see any of these roads set as a service road, please correct this to a standard type road as Service Roads are phased out.
===== Naming =====
Primary streets should only be named the actual name of the street (same name as house numbering indicates). The only exceptions to this rule would be tricky intersections where a County Roads in rural areas. ===== County Roads In Iowa ===== [[File:Iowa CR Map.gif|600px|Frameless|left]]Iowa adopted its present county road sign numbering system in the late 1960's, featuring alphanumeric route numbers on the blue pentagon signs that are also used in many other states. Before that, county roads were given single-letter or double-letter designations, much like Wisconsin's county trunk roads and Missouri's state supplementary roads.  *East-west county roads start with "A" in the northern part of the state and ascend alphabetically until reaching "J" in the south. Example: Johnson County Road F46.*North-south county roads start with "K" in the western part of the state and run all the way through "Z" in the south. Example: Scott County Road Y40.*Diagonal county roads use letter-number-letter route designations instead of the usual letter-and-two number route; the letters used correspond to the letters of other county roads in that area. Examples: Linn County Road W6E, Clayton County Road C9Y. A few four digit county roads exist, though, including Lyon/Sioux County Road A54B, Delaware County Road C60X, Jackson County Road E23Y, and Louisa County Road G44X.*Four letters — I, O, Q, and U — are not used in route numbering. ("I" may be too similar to the number "1," plus Interstate highways are also referred to as "I-xx" routes. "O" and "Q" are too similar to "0" (zero), and "U" is too close to "V.")*Letters tend to change about every 20 to 25 linear miles; they usually do not change with county lines (except for the horizontal roads in western Iowa).*Numbers generally run from 10 through 80, ascending from west to east and north to south.*Numbers can be duplicated in multiple counties on multiple discontinuous routes.*Cardinal direction markers are seldom used, since the only prevalent name first letter should tell you whether it is an east-west or north-south route. *County roads are usually not signed in the city limits of larger cities, as the city usually takes over jurisdiction of the road at that point. Example: County Road W66 runs along Dubuque Street north of Iowa City and Gilbert Street south of there, but it is not signed in the streetcity limits.
==== Street [[Image:Street.png|200px]] ====
A [[Road_types/USA#Street|{{Street}}]] will be for any road in a town or city that doesn't fit in the categories above. In rural areas, this will be lightly used for paved roads that cannot be considered a County Road (a rarity in the rural areas). This will be named the same name used for house numbering.
|
| ''example''
| I-35 N80 E| I-94 35 Business| US-6120| US-2 30 Business| MNIA-231| MNIA-371 60 Business| CR-15M15
| Robertson St
|-
</div>
=== Lock Standards = Locking standard ===={{Lock Standard State|IA}} 
{{Lock Standard State|MN}}
Note: Before locking these roads to these standards, you must verify that the [[Road_Naming_(USA)#Road_naming|name of the road]], [[Road_direction#Road_Direction|direction of the road]], and [[Turn_arrow#Turn_restrictions_.28allowed_turns.29|turn functionality]] is correct. If this information is not correct, it should not be locked unless we are having issues with editors in the area. The only exception here is Freeways due to the routing priority. Refer to [[Minnesota#Unlock_Requests|Unlock Requests]] if you need a section of road altered or unlocked to correct an issue.
Additional: {{reflist}}
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